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Chapter 7

International Economics

TU MA past exam questions

Past questions and answers

13 questions set from this chapter. Most repeated first.

  • 2022 · International Economics · 10 marks

The free trade equalizes the product price ratio between the countries and also makes both of them better off. Explain with reference to Huckscher-Ohlin model of international trade.

Answer

Answer (10 marks)

1. The Heckscher–Ohlin (H–O) model in brief

The H–O model (Eli Heckscher and Bertil Ohlin) explains international trade on the basis of relative factor endowments. Its assumptions are:

  • Two countries, two goods (say cloth = labour-intensive, steel = capital-intensive), two factors (labour L and capital K).
  • Identical technology and identical tastes in both countries.
  • Perfect competition, full employment, free mobility of factors within a country but no mobility between countries.
  • Goods are freely traded, with no transport costs or tariffs.
  • Production functions are linearly homogeneous (constant returns to scale).

Country A is labour-abundant (L/K high) and Country B is capital-abundant (K/L high). Since cloth is labour-intensive, A has a comparative advantage in cloth; B has a comparative advantage in steel. This is the H–O theorem: a country exports the good that uses its abundant factor intensively.

2. Autarky (no-trade) equilibrium: different price ratios

In autarky each country's product price ratio is fixed by its own supply and demand:

(PCPS)A<(PCPS)B\left(\frac{P_C}{P_S}\right)_A < \left(\frac{P_C}{P_S}\right)_B

Because A is labour-abundant, labour is cheap and cloth (labour-intensive) is cheap in A, so its relative price of cloth is low. In B, capital is cheap and steel is cheap, so the relative price of cloth is high. The difference in relative commodity prices is the very basis of trade in the H–O model.

3. Free trade equalizes the product price ratio

When trade is opened, A finds it profitable to export cloth to B and import steel, and B does the opposite. As A exports cloth, its domestic relative price of cloth rises; as B imports cloth, B's relative price of cloth falls. This continues until the two price ratios converge to a single world price ratio:

(PCPS)A=(PCPS)B=(PCPS)W\left(\frac{P_C}{P_S}\right)_A = \left(\frac{P_C}{P_S}\right)_B = \left(\frac{P_C}{P_S}\right)_W

This is the commodity price equalization result of the H–O model. It follows directly from the law of one price under free trade: arbitrage in goods removes any price-ratio gap. (The model goes further — the Factor Price Equalization theorem — showing that free trade also equalizes relative and absolute factor prices, w/rw/r and even ww and rr, across countries.)

4. Why both countries become better off

Trade is simply exchange at a price ratio different from the domestic one, so each country moves to a higher community indifference curve. Formally, the gains from trade can be decomposed into two parts:

  • Consumption (exchange) gain: Even with unchanged production, a country can trade at the world price ratio, which differs from its own, and reach a higher indifference curve. A gets cloth relatively cheaper than it could produce at home; B gets steel relatively cheaper.
  • Production (specialization) gain: Each country reallocates resources towards its comparative-advantage good — A produces more cloth, B produces more steel — so world output of both goods rises. The production possibility frontier of each country is unchanged, but the country consumes on a higher indifference curve, i.e. outside its PPF.

Diagrammatically, with cloth on the X-axis and steel on the Y-axis, the autarky price line touches the PPF at the autarky production point. Under free trade the world price line, with a flatter or steeper slope, touches the PPF at the specialization point and the trade triangle (exports of cloth, imports of steel) allows consumption at a point on a higher indifference curve. The difference between the autarky and free-trade indifference curves measures the welfare gain.

5. Distributional caveat (Stolper–Samuelson)

The gain is a national gain, not necessarily an equal gain for every factor. By the Stolper–Samuelson theorem, free trade raises the real reward of the country's abundant factor and lowers that of its scarce factor. In A, workers gain and capital owners lose; in B, capital owners gain and workers lose. Hence trade equalizes product prices and factor prices, and raises national welfare, but creates winners and losers within each country — which is why compensation or adjustment assistance is often recommended.

6. Conclusion

In the H–O framework, differences in relative factor endowments produce different autarky product price ratios. Free trade allows each country to specialize according to its comparative advantage, and competition and arbitrage drive the two price ratios to a single world ratio. Since each country can then consume outside its own production possibility frontier, both are made better off — though the internal distribution of these gains depends on factor ownership.

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  • 2022 · International Economics · 10 marks

What are the opportunities and threats of free trade in developing countries like Nepal? How these countries can maximize benefits from the free trade? Discuss.

Answer

Opportunities and Threats of Free Trade in Developing Countries like Nepal

Meaning of free trade: Free trade refers to the international exchange of goods and services without tariffs, quotas, or other restrictive barriers. It is promoted globally through the WTO, SAFTA, BIMSTEC, and bilateral trade agreements. For a small, landlocked, and import-dependent economy like Nepal, free trade presents both significant opportunities and serious threats.

Opportunities of Free Trade

  1. Access to a large international market: Free trade opens markets of developed and emerging economies. Nepal can export carpets, garments, pashmina, tea, cardamom, ginger, lentils, and handicrafts without heavy tariff barriers.
  2. Cheaper imports of capital and consumer goods: Machinery, technology, fertilizers, petroleum products, and medicines can be imported at lower prices, reducing production costs and benefiting consumers.
  3. Technology transfer and knowledge spillover: Exposure to foreign firms brings modern technology, management practices, and skill development, raising productivity.
  4. Comparative advantage and specialization: Nepal can specialize in labor-intensive and agro-based products where it has a comparative advantage, improving allocative efficiency.
  5. Foreign investment and employment: Trade liberalization attracts FDI, creates jobs in export-oriented industries, and earns foreign exchange.
  6. Economies of scale: Access to global markets allows domestic firms to produce at larger scale, lowering average cost.
  7. Consumer welfare: Greater variety of goods at lower prices increases real income and consumer surplus.
  8. Integration into global value chains: Nepal can join regional value chains in tourism, hydropower, and agro-processing.

Threats of Free Trade

  1. Destruction of infant industries: New and small domestic industries cannot compete with large, efficient foreign firms and may close down.
  2. Import surge and trade deficit: Nepal already runs a large trade deficit (imports far exceed exports). Free trade can worsen it, draining foreign exchange reserves.
  3. Dependence on foreign goods: Heavy reliance on imports for essential goods reduces self-sufficiency and increases vulnerability to global shocks.
  4. Unemployment and deindustrialization: Cheap imports displace domestic workers in manufacturing, causing structural unemployment.
  5. Revenue loss to government: Removal of tariffs reduces customs revenue, which is a major source of government income in Nepal.
  6. Unequal gains from trade: Developed countries capture larger gains due to superior technology, branding, and bargaining power; developing countries remain raw material suppliers.
  7. Vulnerability to global crises: Financial crises, pandemics, and price volatility in world markets transmit quickly to open economies.
  8. Brain drain and resource depletion: Open borders and trade can encourage emigration of skilled labor and over-exploitation of natural resources.
  9. Non-tariff barriers: Developed countries impose strict standards, sanitary and phytosanitary measures, and technical barriers that restrict exports from developing countries.

How Developing Countries like Nepal Can Maximize Benefits

  1. Protect infant industries strategically: Use temporary tariffs, subsidies, and incentives for sunrise industries until they become competitive.
  2. Diversify exports: Reduce dependence on a few products (carpets, garments) by developing agro-processing, tourism, hydropower, IT services, and herbal products.
  3. Invest in human capital: Improve education, vocational training, and health to raise productivity and competitiveness.
  4. Develop infrastructure: Roads, electricity, dry ports, and digital connectivity reduce trade costs and improve market access.
  5. Strengthen institutions and trade diplomacy: Build capacity in WTO negotiations, trade facilitation, and quality certification to meet international standards.
  6. Promote FDI with safeguards: Attract foreign investment in priority sectors while protecting national interest.
  7. Regional cooperation: Actively use SAFTA, BIMSTEC, and transit agreements with India and China to overcome landlocked disadvantages.
  8. Value addition and branding: Process raw materials domestically (e.g., tea, cardamom, ginger) and build "Made in Nepal" brands.
  9. Social safety nets: Compensate workers and farmers hurt by liberalization through retraining and income support.
  10. Macroeconomic stability: Maintain prudent fiscal, monetary, and exchange rate policies to absorb external shocks.

Conclusion

Free trade is a double-edged sword for developing countries like Nepal. It offers market access, technology, and consumer benefits, but also threatens infant industries, employment, and external balance. The key lies not in rejecting free trade but in managing it wisely — through strategic protection, human capital investment, infrastructure development, export diversification, and strong institutions — so that Nepal can integrate into the global economy on favorable terms and maximize gains while minimizing risks.

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  • 2022 · International Economics · 10 marks

Discuss the elasticity approach of devaluation. Can the devaluation of Nepalese currency against Indian currency be beneficial in minimizing Nepal's trade deficit with India? Justify with arguments.

Answer

Elasticity Approach of Devaluation

The elasticity approach to devaluation, developed within the framework of the Marshall–Lerner condition, examines how a change in the exchange rate affects a country's trade balance through changes in the relative prices of exports and imports. It assumes that prices are flexible, incomes are constant, and the economy operates below full employment. Devaluation makes exports cheaper in foreign currency and imports dearer in domestic currency, so the trade balance improves only if the sum of the absolute values of the export demand elasticity and the import demand elasticity exceeds unity. Formally, the Marshall–Lerner condition states:

∣Ex∣+∣Em∣>1|E_x| + |E_m| > 1

where ExE_x is the price elasticity of export demand and EmE_m is the price elasticity of import demand. If this condition holds, devaluation raises net exports; if it does not, the trade balance worsens — a situation often described through the J-curve, where the trade balance initially deteriorates before improving as quantities adjust over time. The approach also recognizes that devaluation works only when there is unused capacity to expand export production and when the Marshall–Lerner condition is satisfied. It ignores income effects, which are handled by the absorption approach.

Devaluation of Nepalese Currency against Indian Currency and Nepal's Trade Deficit with India

Nepal maintains a pegged exchange rate with India at Rs 1.60 per Indian rupee (with a 2 percent band), so Nepal cannot independently devalue against the Indian currency. Even if it could, the effect on the trade deficit with India would be limited for the following reasons:

Arguments in favour of possible benefit:

  1. Relative price effect: A weaker Nepalese rupee would make Nepalese exports (tea, cardamom, ginger, lentils, handicrafts, electricity) cheaper in India and Indian imports (machinery, petroleum, medicines, vehicles) costlier in Nepal. If Indian demand for Nepalese goods is elastic, export earnings could rise and imports fall, narrowing the deficit.

  2. Import substitution: Costlier Indian goods would encourage domestic production and substitution of some Indian imports, reducing the import bill.

  3. Tourism and remittances: A cheaper Nepalese rupee would attract more Indian tourists and raise the rupee value of remittances from India, improving the current account.

Arguments against significant benefit:

  1. No independent exchange rate policy: The peg with India means Nepal cannot devalue unilaterally; any change would require Indian consent and would apply to all currencies, not just the Indian rupee.

  2. Low elasticity of Nepal's exports: Nepal's exports to India are small in volume and face supply-side constraints (poor infrastructure, power shortage, strikes, low productivity). Even with cheaper prices, Nepal cannot quickly expand export quantities, so ∣Ex∣|E_x| is low.

  3. High import dependence: Nepal's imports from India are essential — petroleum products, medicines, industrial raw materials, food grains — with inelastic demand. Costlier imports would raise the import bill rather than reduce quantities, worsening the deficit.

  4. Pass-through and inflation: Devaluation raises import prices, causing cost-push inflation in Nepal. Higher domestic prices offset the competitiveness gained, and wage increases further erode the advantage.

  5. Third-country effect and informal trade: Much Nepal–India trade is informal and routed through open borders, so exchange rate changes may not affect recorded trade. Also, Nepal's exports to third countries use Indian transit, and a weaker rupee raises transit costs.

  6. Structural deficit: The Nepal–India trade deficit is structural, driven by differences in industrial base, scale, and productivity. A nominal exchange rate change cannot correct a structural gap.

Conclusion

The elasticity approach shows that devaluation improves the trade balance only if the Marshall–Lerner condition holds and supply responds. For Nepal, the peg with India rules out independent devaluation, and even a hypothetical devaluation would yield little benefit because Nepal's export supply is inelastic and its imports from India are essential and price-inelastic. The trade deficit with India is better addressed through structural measures — improving infrastructure, promoting export-oriented production, diversifying exports, and enhancing competitiveness — rather than through exchange rate manipulation.

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  • 2022 · International Economics · 5 marks

Define and derive the Marshall-Lerner condition. What are its implications for policy makers?

Answer

Marshall–Lerner Condition

Definition

The Marshall–Lerner condition states that a devaluation (or depreciation) of a country's currency will improve its trade balance only if the sum of the absolute values of the price elasticities of demand for exports and imports is greater than one. Formally, if εx\varepsilon_x is the elasticity of demand for exports and εm\varepsilon_m is the elasticity of demand for imports (both measured in absolute terms), the condition is:

∣εx∣+∣εm∣>1|\varepsilon_x| + |\varepsilon_m| > 1

If the sum equals one, the trade balance remains unchanged; if it is less than one, devaluation worsens the trade balance.

Derivation

Let the trade balance in domestic currency be:

B=Px⋅X−E⋅Pm∗⋅MB = P_x \cdot X - E \cdot P_m^* \cdot M

where PxP_x = domestic price of exports, XX = quantity of exports, EE = exchange rate (domestic currency per unit of foreign currency), Pm∗P_m^* = foreign price of imports, and MM = quantity of imports.

Assume initially B=0B = 0 (balanced trade), so PxX=EPm∗MP_x X = E P_m^* M. Differentiate BB with respect to EE, holding PxP_x and Pm∗P_m^* constant:

dBdE=PxdXdE−Pm∗M−EPm∗dMdE\frac{dB}{dE} = P_x \frac{dX}{dE} - P_m^* M - E P_m^* \frac{dM}{dE}

Define the export supply response and the import demand elasticity. Since XX depends on the relative price Px/(EPm∗)P_x/(E P_m^*), a rise in EE makes exports cheaper abroad, so XX rises; and MM falls as imports become dearer. Expressing in elasticity form:

dBdE⋅EPxX=εx+εm−1\frac{dB}{dE} \cdot \frac{E}{P_x X} = \varepsilon_x + \varepsilon_m - 1

(using the initial balanced-trade condition PxX=EPm∗MP_x X = E P_m^* M to substitute).

Therefore:

dBdE>0  ⟺  εx+εm>1\frac{dB}{dE} > 0 \iff \varepsilon_x + \varepsilon_m > 1

This is the Marshall–Lerner condition. It is derived under the assumptions of initially balanced trade, partial equilibrium (no income effects), constant foreign prices, and no retaliation.

Implications for Policy Makers

  1. Devaluation is not automatically effective. A currency devaluation improves the trade balance only when demand for exports and imports is sufficiently elastic. If elasticities are low (as is often the case for small, import-dependent economies), devaluation may worsen the deficit.

  2. The J-curve effect. In the short run, elasticities tend to be low because contracts and consumption patterns are fixed, so the trade balance initially deteriorates after devaluation; it improves only in the long run as elasticities rise. Policy makers must therefore expect a short-run worsening before gains appear.

  3. Need for complementary policies. Since devaluation alone may fail, governments should combine it with supply-side measures (improving export competitiveness, reducing costs) and structural reforms to raise elasticities over time.

  4. Caution against competitive devaluation. If trading partners retaliate, the condition may not hold, and the policy may only trigger a currency war without correcting the external imbalance.

  5. Alternative instruments. When the Marshall–Lerner condition fails, policy makers should rely more on expenditure-reducing policies (fiscal and monetary contraction) and expenditure-switching policies other than the exchange rate (tariffs, quotas, export subsidies) to correct the trade deficit.

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  • 2022 · International Economics · 5 marks

Distinguish between the tariff and non-tariff barriers to trade. What are the implications of tariff barriers in today's world? Illustrate.

Answer

Distinction between Tariff and Non-Tariff Barriers to Trade

BasisTariff BarriersNon-Tariff Barriers (NTBs)
MeaningTaxes or duties levied by a government on imported (and sometimes exported) goodsAll trade-restricting measures other than tariffs
FormAd valorem (percentage of value), specific (fixed sum per unit), or compound (both)Quotas, import licences, voluntary export restraints, technical standards, sanitary and phytosanitary measures, subsidies, local content rules, administrative delays
Price effectDirectly raises the domestic price of the imported good and reduces the price gap between world and domestic marketsRaises price or restricts quantity indirectly, often by limiting market access rather than by taxing value
RevenueGenerates government revenueUsually generates little or no revenue; quota rents may accrue to exporters or importers
TransparencyHighly transparent; rates are published and bound under WTO schedulesLess transparent; discretionary and hard to quantify
WTO disciplineBound and progressively reduced through multilateral negotiationsLoosely disciplined; many fall under legitimate policy space (health, safety, environment)
Welfare effectCreates deadweight loss (consumption and production distortion) plus terms-of-trade gain for large countriesCreates rent-seeking, resource misallocation and often greater welfare loss per unit of protection

Implications of Tariff Barriers in Today's World

  1. Reduced but still present protection. Average applied tariffs have fallen sharply since GATT/WTO rounds (from around 40% in the 1940s to single digits in most countries), yet tariffs remain high in agriculture, textiles and footwear, and in "sensitive" products.

  2. Trade diversion and distortion. Tariffs shift imports from efficient to inefficient sources and protect domestic producers at the cost of consumers, producing deadweight loss. Example: US tariffs on Chinese goods under Section 301 raised input costs for US manufacturers and invited retaliatory tariffs on American farm exports.

  3. Revenue and fiscal role in developing countries. For economies with weak tax systems (e.g., Nepal, where customs duties remain a major revenue source), tariffs serve a fiscal function, so sudden liberalisation can shrink public revenue.

  4. Strategic and geopolitical use. Tariffs are increasingly used as instruments of trade war and bargaining rather than pure revenue or infant-industry protection — the US–China trade war and India's tariff hikes on Chinese imports illustrate this.

  5. Supply-chain reorganisation. Prolonged tariffs encourage "friend-shoring" and relocation of production, raising costs and reducing the efficiency gains of global value chains.

  6. Welfare ambiguity for large countries. A large country can gain through improved terms of trade (optimum tariff argument), but retaliation by partners can leave all parties worse off — a prisoner's-dilemma outcome.

Illustration: Suppose Nepal imposes a 50% tariff on imported rice priced at Rs 100/kg on the world market. Domestic price rises to Rs 150/kg. Domestic farmers expand output (production distortion), consumers cut consumption (consumption distortion), and the government collects revenue — but the net welfare loss is the sum of the two triangles. If India retaliates by taxing Nepali exports, Nepal's terms-of-trade gain is offset, showing why unilateral tariff barriers are rarely beneficial in today's interdependent trading system.

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  • 2022 · International Economics · 5 marks

What is Leontief paradox? How does it occur? Explain with suitable example.

Answer

Leontief paradox

Meaning. The Heckscher-Ohlin (H-O) theorem predicts that a capital-abundant country exports capital-intensive goods and imports labour-intensive goods. In 1953 Wassily Leontief tested this for the United States, the most capital-abundant country of the time, using his input-output table for 1947. He found the opposite: US exports were relatively labour-intensive and US import-competing goods were relatively capital-intensive. This contradiction is the Leontief paradox.

How it occurs. Leontief measured the capital and labour needed to produce $1 million worth of US exports and of US import-competing goods:

Capital (US$)Labour (man-years)Capital per man-year
Exports ($1 million)2,550,780182about $14,010
Imports ($1 million)3,091,339170about $18,180

Imports needed about 30% more capital per worker than exports, which is the reverse of what H-O predicts. Reasons offered for it:

  1. Factor-intensity reversal: the same good can be capital-intensive in one country and labour-intensive in another, so the H-O ranking breaks down.
  2. Demand bias: US consumers prefer capital-intensive goods, so the US imports them despite being capital-abundant.
  3. Trade barriers: protection of US labour-intensive industries (textiles, footwear) distorts the trade pattern.
  4. Human capital: Leontief treated all labour as homogeneous. US labour is highly skilled, so US exports are really human-capital-intensive.
  5. Natural resources: imports such as petroleum and minerals need much capital to extract.
  6. Data limits: 1947 was a post-war year, and the data were aggregated and ignored some intermediate inputs.

Example. In Leontief's data, US exports such as aircraft, agricultural machinery and other manufactures embodied more labour per dollar of output than the steel, petroleum and similar goods the US imported. A capital-abundant country thus appeared to export labour-intensive goods and import capital-intensive goods.

Conclusion. The paradox does not overturn H-O. When skilled labour (human capital), natural resources and demand conditions are included, the pattern of US trade is largely consistent with the theory. Leontief's 1956 study using 1951 data again found the paradox.

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  • 2022 · International Economics · 5 marks

Why food/online industries are growing after the Covid-19 pandemic? Justify.

Answer

Why food/online industries grew after the Covid-19 pandemic (5 marks)

The food delivery and online (e-commerce, digital service) industries expanded sharply after Covid-19 because the pandemic permanently changed both consumer behaviour and business structure. The main reasons are:

  1. Shift in consumer preference toward convenience and safety. Lockdowns and fear of infection pushed households to order food and goods from home. Even after restrictions were lifted, the habit of home delivery, contactless payment, and doorstep shopping persisted, so demand did not fall back to pre-Covid levels.

  2. Rapid digitalisation and rise in internet/smartphone use. Work-from-home, online classes, and social distancing increased internet penetration and digital literacy. More consumers became comfortable with apps, e-wallets, and online ordering, widening the market for food delivery and e-commerce platforms.

  3. Low-cost business model and low entry barrier. Online food and retail platforms need no large physical showroom or dining space. They connect existing restaurants, cloud kitchens, and small sellers to customers through an app, so fixed costs are low and new firms (and home-based food businesses) can enter easily.

  4. Growth of supporting infrastructure. Expansion of delivery fleets, logistics networks, digital payment systems (eSewa, Khalti, Fonepay, cards), and cloud kitchens reduced delivery time and cost, making online ordering cheaper and more reliable than before.

  5. Changed employment and income patterns. Post-pandemic job insecurity and the search for flexible income led many people to work as delivery riders or start online food ventures. At the same time, platforms offered discounts, subscriptions, and advertising, which kept demand and competition high.

Conclusion: The growth is therefore explained by a lasting change in consumer habits, digital infrastructure, and a low-cost, scalable online business model — not merely by the temporary lockdown. Hence these industries continued to grow even after the pandemic ended.

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  • 2022 · International Economics · 5 marks

Explain the product life cycle theory of trade. Why this theory is said to be more appropriate to explain trade of the developed countries? Give reasons.

Answer

Product Life Cycle Theory of Trade

The product life cycle (PLC) theory of trade was developed by Raymond Vernon (1966) as a dynamic extension of the technology-gap and imitation-gap models. It explains how a product is first invented, produced and exported by a developed country, and how production and trade gradually shift to other countries as the product matures and becomes standardized.

The theory divides the life of a product into four stages:

1. Introduction (Innovation) Stage A new product is invented in a developed country (typically the USA) because of high income, large market size, advanced technology, skilled labour and heavy R&D expenditure. In this stage:

  • Production is small-scale and located in the innovating country.
  • The product is sold mainly in the domestic market.
  • Exports are limited or absent; the country may even import nothing.
  • Price is high because of novelty and near-monopoly.

2. Growth (Expansion) Stage Demand rises rapidly at home and abroad. The innovating firm begins to export the product to other developed countries with similar tastes and income. Foreign demand grows, and competitors in other advanced countries start producing similar products under licence or by imitation. Exports from the innovator reach their peak in this stage.

3. Maturity Stage The product becomes standardised, technology is well known, and the market becomes oligopolistic. Price competition increases. To reduce cost, the innovating firm shifts production to other developed countries (e.g., European nations, Japan) and later to developing countries with cheap labour. Exports from the original innovator decline, and those countries that earlier imported now begin to export.

4. Decline (Standardisation) Stage The product is fully standardised and production is dominated by low-wage developing countries. The original innovating country becomes a net importer of the product. Its firms move on to invent new products, and the cycle repeats.

Thus trade patterns change over time: the innovating country first exports, then loses its export market, and finally imports the same product from late-comer countries.


Why the Theory is More Appropriate for Trade of Developed Countries

The PLC theory is regarded as more appropriate for explaining the trade of developed countries for the following reasons:

1. Innovation base of developed countries. New products are invented where income is high, consumers are quality-conscious and R&D facilities are strong — conditions found mainly in developed countries. Hence the theory begins with developed-country innovation.

2. Skilled labour and technology advantage. Developed countries possess abundant skilled labour, scientists and advanced technology, which give them a temporary monopoly in new products. This explains their early export dominance.

3. High per capita income and market size. Large domestic markets in rich countries allow firms to bear high initial costs and achieve economies of scale before exporting — a feature typical of developed economies.

4. Imitation and technology transfer. As technology diffuses, other developed countries imitate and then developing countries copy, causing the innovator's comparative advantage to erode. This dynamic shift is best observed in trade among developed and newly industrialising countries.

5. Explanation of intra-industry and manufactured-goods trade. A large part of developed-country trade is in differentiated manufactured goods rather than homogeneous primary products. The PLC theory explains such trade through product innovation, standardisation and relocation of production.

6. Dynamic comparative advantage. Unlike the static Heckscher–Ohlin theory, the PLC theory shows that comparative advantage changes over the product's life, which matches the actual experience of developed countries like the USA, Japan and Western European nations.

7. Explains relocation of production. The movement of production from developed to developing countries (e.g., textiles, electronics, automobiles) is a real feature of modern trade, and the PLC theory captures this process well.

Conclusion. The PLC theory is more appropriate for developed-country trade because it treats trade as a dynamic, time-dependent process driven by innovation, imitation and standardisation — features that characterise the trade patterns of advanced economies rather than the static factor-endowment trade of traditional theory.

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  • 2022 · International Economics · 5 marks

State the Stolper-Samuelson theorem. How does it explain the relationship between the commodity and factor prices?

Answer

Stolper-Samuelson theorem (1941)

Statement. In the 2x2x2 Heckscher-Ohlin model (two goods, two factors, two countries) with perfect competition and full employment, a rise in the relative price of a good raises the real return to the factor used intensively in producing that good, and lowers the real return to the other factor.

Explanation of the commodity-factor price link. Take cloth (labour-intensive) and steel (capital-intensive) with labour LL and capital KK.

  1. If the price of cloth rises relative to steel, cloth producers expand and steel producers contract.
  2. Cloth uses more labour per unit of capital than steel does, so the expansion of cloth needs more labour than the contraction of steel releases. Capital is released in excess.
  3. Excess demand for labour pushes the wage ww up, and excess supply of capital pushes the rental rr down.
  4. Both industries then substitute away from labour towards capital, so the capital-labour ratio rises in both. Under competition, price equals unit cost in both industries, so the factor prices must satisfy PC=aLCw+aKCrP_C = a_{LC}w + a_{KC}r and PS=aLSw+aKSrP_S = a_{LS}w + a_{KS}r.

Magnification effect. The change in factor prices is larger than the change in the commodity price:

w^>P^C>P^S>r^\hat w > \hat P_C > \hat P_S > \hat r

where a hat denotes a proportional change. For example, a 10% rise in the price of cloth may raise the wage by more than 10% and cut the rental. Hence the real wage rises in terms of both goods, and the real return to capital falls in terms of both goods. This is the strong form of the theorem, and it holds regardless of consumer tastes.

Implication for Nepal. Nepal is labour-abundant, so free trade raises the relative price of labour-intensive goods (carpets, garments, agricultural produce). The theorem predicts that wages rise and returns to scarce capital fall. Capital owners in import-competing industries therefore tend to oppose trade liberalisation.

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  • 2022 · International Economics · 5 marks

How is the composition of the world trade changing over the period? How does it affect the developing nations?

Answer

Composition of world trade means the relative shares of different commodity groups — primary products (agricultural goods, fuels, minerals) versus manufactured goods and, increasingly, services — in total world exports. Over the last five to six decades this composition has changed markedly.

Changing composition of world trade

  1. Decline in the share of primary products. In the 1950s primary commodities accounted for roughly half of world exports; today they account for well under a quarter. The share of agricultural raw materials and food has fallen most sharply.
  2. Rise in the share of manufactured goods. Manufactures now make up around 70–75 per cent of world merchandise exports. Within manufactures, the fastest growth has been in machinery, transport equipment, chemicals, and especially electronics and information-technology products.
  3. Rise of services trade. Trade in commercial services (transport, travel, finance, telecommunications, business process outsourcing, software) has grown faster than merchandise trade and now accounts for about a fifth of total world trade.
  4. Shift towards high-technology and knowledge-intensive goods. Textiles, clothing and other labour-intensive manufactures have lost relative weight, while electronics, pharmaceuticals and precision goods have gained.
  5. Intra-industry and intra-firm trade. A large part of trade is now exchange of similar products between developed countries and trade within the same multinational firm's global value chain, rather than exchange of raw materials for finished goods.
  6. Geographical shift in the direction of trade. The centre of gravity has moved towards Asia, with China, India and other East Asian economies becoming major exporters of manufactures.

Effects on developing nations

Positive effects:

  • New export opportunities. Developing countries that shifted into labour-intensive manufactures (garments, footwear, electronics assembly) — as in East Asia, China, Bangladesh, Vietnam — have raised export earnings, employment and growth. This is the classic "flying geese" pattern of structural transformation.
  • Participation in global value chains. By supplying components rather than only raw materials, countries can industrialise without producing a whole product, gaining technology and skills spillovers.
  • Services exports. Outsourcing of software and business services has benefited countries such as India and the Philippines, generating foreign exchange and skilled employment.
  • Higher prices for some commodities. Rising demand from emerging economies (notably for fuels and metals) has at times improved the terms of trade of resource-exporting developing countries.

Negative effects:

  1. Deteriorating terms of trade for primary exporters. Countries still dependent on a few primary commodities face volatile and relatively declining prices (the Prebisch–Singer thesis), leading to unstable export earnings and balance-of-payments difficulties.
  2. Unequal gains. Most of the growth in manufactures and services trade is concentrated in a handful of developing countries; least developed countries, especially in Africa and South Asia, remain marginal, with their share of world exports still around 1 per cent.
  3. Vulnerability and dependence. Dependence on a narrow range of exports or on a few large markets makes these economies highly sensitive to external shocks, protectionism and demand fluctuations in developed countries.
  4. Terms-of-trade and technology gap. Value addition, branding and research are concentrated in developed countries, so developing nations capture only the low-wage, low-value segment of the chain.
  5. Pressure on domestic industry and environment. Import competition can displace local producers, while resource-intensive and pollution-intensive production is often relocated to developing countries.

Conclusion. World trade has moved from a primary-product base to a manufactures- and services-dominated structure. Developing nations that diversified into manufactures and services have gained substantially, while those locked into primary commodities have gained least. The policy implication is that developing countries must diversify exports, move up the value chain, invest in human capital and technology, and press for fair market access in the WTO framework.

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  • 2022 · International Economics · 5 marks

What would be the implications on Nepal's foreign trade under the WTO regime due to the graduation from the status of LDC to developing country? Discuss.

Answer

Nepal's graduation from LDC to developing country and its implications for foreign trade under the WTO regime

Nepal was recommended for graduation from the Least Developed Country (LDC) category by the UN Committee for Development Policy in 2018 and 2021, with graduation scheduled for 2026. Graduation brings both opportunities and challenges for Nepal's foreign trade under the WTO framework.

Loss of LDC-specific trade privileges

  1. Preferential market access: As an LDC, Nepal enjoyed duty-free, quota-free (DFQF) access to developed country markets under the WTO's Hong Kong Ministerial Decision and schemes like the EU's Everything But The Arm (EBA) and the US GSP. After graduation, these preferences are withdrawn, exposing Nepali exports (garments, carpets, pashmina, tea, cardamom) to normal MFN tariffs, reducing their competitiveness.

  2. TRIPS flexibilities: LDC exemptions from certain TRIPS obligations (e.g., pharmaceutical patents) end, raising costs for Nepal's pharmaceutical and agro-processing sectors.

  3. Services waiver: The LDC services waiver allowing preferential treatment in services trade expires, affecting Nepal's labour export and tourism-related services.

  4. S&D provisions: Nepal loses access to special and differential treatment in WTO agreements, including longer transition periods and technical assistance.

Opportunities and positive implications

  1. Enhanced credibility: Developing country status improves Nepal's bargaining position and image in international trade negotiations and attracts FDI.

  2. Access to new markets: Nepal can negotiate bilateral and regional trade agreements (BTAs/RTAs) on more equal terms, potentially diversifying beyond India.

  3. Improved export competitiveness: Pressure to upgrade quality, productivity and value addition may stimulate structural transformation.

Challenges and adjustment needs

  1. Revenue loss: Preference erosion reduces export earnings and tariff revenue.
  2. Trade deficit: Nepal's already large trade deficit with India and China may widen.
  3. Institutional capacity: Nepal lacks strong trade negotiation and compliance capacity.

Conclusion

Nepal's graduation offers long-term gains through better integration into the global trading system, but in the short run it threatens preferential market access. Nepal must negotiate transitional arrangements, diversify exports, improve trade infrastructure, and strengthen WTO compliance capacity to mitigate adverse effects.

Answer checked by Claude Haiku · Oct 21, 2026

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  • 2022 · International Economics · 5 marks

What are the causes of BoP deficit? What could be the policy measures to reduce such deficit?

Answer

Causes of Balance of Payments (BoP) Deficit

A BoP deficit arises when a country's total foreign exchange payments exceed its total receipts. The main causes are:

  1. High import expenditure: Excessive imports of consumer and capital goods relative to exports create a persistent trade gap.
  2. Low export competitiveness: Low productivity, high production costs, poor quality and weak marketing reduce export earnings.
  3. Rising debt servicing: Heavy external borrowing means large interest and principal repayments.
  4. Inflation and high domestic prices: Relatively higher domestic prices make exports dearer and imports cheaper.
  5. Overvalued exchange rate: An artificially strong currency discourages exports and encourages imports.
  6. Dependence on a few primary exports: Volatile prices and demand for primary commodities cause unstable export earnings.
  7. Structural factors: Weak industrial base, poor infrastructure, low capital formation and shortage of technology.
  8. Capital flight and low foreign investment: Political instability and unfavourable investment climate reduce capital inflows.
  9. Natural calamities and external shocks: Disasters, oil price hikes and global recessions worsen the deficit.

Policy Measures to Reduce the Deficit

  1. Export promotion: Diversify exports, provide subsidies, export credit, quality improvement and market access.
  2. Import substitution: Encourage domestic production of previously imported goods, with tariffs and quotas on non-essential imports.
  3. Exchange rate adjustment: Devaluation or depreciation to make exports cheaper and imports costlier.
  4. Fiscal and monetary discipline: Control inflation, reduce budget deficits and restrain aggregate demand.
  5. Attract foreign capital: Improve the investment climate through FDI, joint ventures and remittance formalisation.
  6. Debt management: Reschedule or reduce external debt and use borrowed funds in productive sectors.
  7. Structural reforms: Develop infrastructure, human capital and technology to raise productivity.
  8. Promote tourism and services exports: Earn foreign exchange through tourism, labour export and IT services.
  9. Regional and bilateral trade agreements: Expand markets through SAFTA, BIMSTEC and WTO commitments.

In short, a BoP deficit requires a mix of expenditure-switching (devaluation, tariffs) and expenditure-reducing (fiscal and monetary contraction) policies, supported by long-term structural reforms.

Answer checked by Claude Haiku · Oct 21, 2026

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  • 2022 · International Economics · 5 marks

Write short notes on (Any Two): a) Terms of trade b) Gains from trade c) Comparative cost advantage

Answer

a) Terms of Trade

Meaning: Terms of trade (TOT) refer to the rate at which a country's exports are exchanged for its imports. It shows the ratio between export prices and import prices, i.e., how many units of imports a country can obtain per unit of exports.

Measurement: The most common measure is the commodity or net barter terms of trade, given by:

TOT=PxPm×100TOT = \frac{P_x}{P_m} \times 100

where PxP_x = index of export prices and PmP_m = index of import prices (base year = 100).

Interpretation:

  • If TOT rises above 100, terms of trade are said to improve — the country gets more imports per unit of exports, so it gains.
  • If TOT falls below 100, terms of trade deteriorate — the country must export more to buy the same imports, so it loses.

Determinants: TOT depend on relative demand and supply conditions, productivity changes, tariff and trade policies, exchange rates, and the structure of exports (primary vs. manufactured goods).

Importance: TOT indicate a country's gain from international trade and its capacity to import. A deterioration in TOT (as experienced by many primary-goods exporters) reduces real income and worsens the balance of payments. However, TOT alone do not measure welfare, since changes in export volume and productivity also matter.


b) Gains from Trade

Meaning: Gains from trade are the net benefits a country enjoys by specialising in the production of goods in which it has a cost advantage and trading them for goods it needs, instead of producing everything itself.

Types of gains:

  1. Static gains:

    • Production gain: Specialisation according to comparative advantage raises total world output with the same resources.
    • Consumption gain: Through exchange, a country can consume beyond its own production possibility frontier, reaching a higher indifference curve.
    • Exchange gain: Buying imports at a lower price than domestic cost saves resources.
  2. Dynamic gains:

    • Access to larger markets allows economies of scale and lower average cost.
    • Transfer of technology, skills and management know-how through trade and investment.
    • Increased competition improves efficiency and innovation.
    • Greater employment, higher income and faster economic growth.
    • Better availability and variety of goods at cheaper prices for consumers.

Illustration: If Nepal can produce cloth relatively cheaply and imports machinery relatively cheaply from another country, both countries end up consuming more than in autarky. The gain arises because each country's consumption possibility line lies outside its production possibility curve.

Measurement: Gains can be measured by the increase in real national income, the improvement in the terms of trade, or the rise in consumer surplus.

Conclusion: Trade is not a zero-sum game; both trading partners can gain, though the distribution of gains depends on the terms of trade and relative bargaining strength.

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