- Simple models of comparative advantage often result in complete specialization. In the real world, countries rarely specialize completely in one good. What is the best economic explanation for this incomplete specialization?
Answer: The law of increasing opportunity cost, which makes specialization progressively more costly as it proceeds.
Simple models often assume constant opportunity costs (a straight-line PPF). Real-world PPFs are typically bowed outward, reflecting increasing opportunity costs. As a country specializes more in one good, it must give up increasingly larger amounts of other goods. Eventually, its domestic opportunity cost of production can rise to meet the world price, at which point further specialization is no longer profitable. While other factors like politics and trade barriers exist, increasing opportunity cost is the most fundamental economic reason.
- The countries agree to specialize and trade. Which of the following trade offers from Country Sol to Country Luna would be mutually beneficial?
Answer: Sol offers 4 computers in exchange for 7 tons of steel.
First, find comparative advantage. Sol's opportunity cost for 1 computer is 1.5 tons of steel (12/8). Luna's opportunity cost for 1 computer is 2 tons of steel (10/5). Sol has the comparative advantage in computers and will export them. The terms of trade must be between 1.5 and 2 tons of steel per computer. Let's analyze the offers: A) 5/4 = 1.25 steel per computer. Sol would not accept. B) 7/4 = 1.75 steel per computer. This is between 1.5 and 2, so it's mutually beneficial. C) 9/4 = 2.25 steel per computer. Luna would not accept. D) This offer has Sol importing computers, which is against its comparative advantage.
- An analyst claims that since Beta has an absolute advantage in producing both goods, it cannot gain from trade with Alpha. This conclusion is incorrect primarily because...
Answer: Alpha's opportunity cost of producing a robot is lower than Beta's, creating a basis for specialization and trade.
The analyst's claim is the absolute advantage fallacy. We must compare opportunity costs. Alpha's opportunity cost of 1 robot is 2 pizzas (20/10). Beta's opportunity cost of 1 robot is 3 pizzas (45/15). Since Alpha gives up fewer pizzas to produce a robot (2 < 3), Alpha has the comparative advantage in robots. This difference in opportunity costs creates the basis for mutually beneficial trade, even though Beta has an absolute advantage in both goods.
- Country A can produce either 100 cars or 50 airplanes in a year. Country B can produce either 120 cars or 40 airplanes in a year. Based on this information, which statement accurately identifies the opportunity costs and the basis for trade?
Answer: Country B has a lower opportunity cost for producing cars, and Country A has a lower opportunity cost for producing airplanes, creating a basis for trade.
To find the comparative advantage, we must calculate the opportunity cost for each country. In Country A, the opportunity cost of 1 airplane is 2 cars (100/50). The opportunity cost of 1 car is 0.5 airplanes (50/100). In Country B, the opportunity cost of 1 airplane is 3 cars (120/40). The opportunity cost of 1 car is 1/3 of an airplane (40/120). Country B has a lower opportunity cost for cars (1/3 airplane < 0.5 airplane), and Country A has a lower opportunity cost for airplanes (2 cars < 3 cars). This difference forms the basis for mutually beneficial trade.
- If two countries specialize according to their respective comparative advantages and engage in voluntary trade, which statement most accurately describes the primary benefit?
Answer: Both countries will be able to consume a combination of goods that lies outside their individual production possibilities frontiers.
The primary benefit of trade based on comparative advantage is that it allows countries to achieve a level of consumption that would be impossible given their own production constraints. By specializing and trading, countries can effectively transform the good they produce into another good at a better rate than they could domestically. This moves their consumption point beyond their production possibilities frontier (PPF), even though the PPF itself does not shift. The PPF only shifts due to changes in resources or technology.
- Which of the following best explains how international trade allows a country to consume at a point outside its production possibilities frontier (PPF)?
Answer: By specializing and trading, a country can acquire goods at a lower opportunity cost than if it produced them domestically.
A country's PPF represents the maximum it can produce. Trade allows a country to specialize in production (choosing a point on its PPF) and then exchange its surplus production for foreign goods at a world price (terms of trade). If this price is better than its domestic opportunity cost, it can obtain a bundle of goods for consumption that lies beyond its production capabilities. Trade expands consumption possibilities, not production possibilities.
- Given the production possibilities described in the passage, which of the following represents a mutually beneficial term of trade for one airplane?
Answer: Country A exports one airplane to Country B for 2.5 cars.
For trade to be mutually beneficial, the price must lie between the two countries' opportunity costs. Country A's opportunity cost of producing one airplane is 2 cars, so it will not sell an airplane for less than 2 cars. Country B's opportunity cost of producing one airplane is 3 cars, so it will not pay more than 3 cars to buy one. Therefore, a mutually beneficial price for one airplane must be between 2 and 3 cars. Only 2.5 cars falls within this range.
- While the theory of comparative advantage shows that a nation as a whole benefits from trade, certain groups within the nation can be harmed. When a country opens to trade and begins exporting a good in which it has a comparative advantage, which group is most likely to be negatively affected?
Answer: Domestic consumers of the exported good.
When a country exports a good, it does so because its domestic price is below the world price. As it starts exporting, the domestic price will rise to meet the higher world price. This benefits domestic producers, who now get a higher price, but it harms domestic consumers of that same good, who now have to pay more. Workers in import-competing industries (distractor D) are harmed when the country imports goods, not when it exports them.
- The theory of comparative advantage suggests powerful benefits from free trade. However, the existence of high transportation costs can diminish these gains primarily because these costs...
Answer: effectively increase the opportunity cost of the imported good, potentially negating the price advantage from trade.
The benefit of trade comes from acquiring a good from another country at a lower price (i.e., lower opportunity cost) than producing it domestically. Transportation costs add to the final price of the imported good. If these costs are high enough, they can erase the initial price advantage that was created by the difference in comparative advantage, making trade unprofitable.
- Country X has a comparative advantage in wheat, and Country Y has a comparative advantage in textiles. A major technological breakthrough doubles Country Y's productivity in both wheat and textiles. What is the most likely consequence for the pattern of trade?
Answer: The pattern of comparative advantage remains unchanged, and trade can still be mutually beneficial.
Comparative advantage is based on relative opportunity costs, not absolute productivity. If Country Y's productivity doubles in both sectors, the ratio of its wheat production to its textile production remains the same. Therefore, its opportunity cost of producing one good in terms of the other does not change. Since the opportunity costs in both Country X and Country Y have not changed, their respective comparative advantages remain the same, and the basis for trade still exists.
- Suppose that due to a new fertilizer, the productivity of all Canadian agricultural workers doubles. This change would most likely cause Canada's production possibilities frontier (PPF) to...
Answer: shift outward, but its comparative advantage would only change if productivity in other sectors remained constant.
An increase in productivity shifts the PPF outward, as the country can now produce more. However, comparative advantage depends on opportunity costs, which are determined by relative productivities. If agricultural productivity doubles, but industrial productivity stays the same, the opportunity cost of producing agricultural goods (in terms of industrial goods forgone) will decrease, thus changing (and increasing) Canada's comparative advantage in agriculture. If all sectors' productivity changed by the same proportion, the comparative advantage would not change.
- A high-wage, developed country can have a comparative advantage in a capital-intensive good (e.g., commercial aircraft) over a low-wage, developing country. This situation is possible primarily because...
Answer: the high-wage country's productivity advantage in other sectors, like services, may be even greater than its advantage in aircraft.
Comparative advantage is about opportunity cost. A country will specialize in the good where its relative productivity advantage is greatest (or its disadvantage is smallest). The high-wage country might be extremely productive at making aircraft, but it might be even more productive at providing financial services. In this case, the opportunity cost of making aircraft (the financial services it forgoes) is lower than the opportunity cost for the developing country, which might have to forgo its entire agricultural sector to produce aircraft.
- Country Serene can produce 30 tons of lumber or 15 tons of steel. Country Dynamic can produce 40 tons of lumber. For trade based on comparative advantage to be mutually beneficial, which of the following must be true regarding Country Dynamic's steel production?
Answer: It must be able to produce any amount of steel other than 20 tons.
First, find Country Serene's opportunity cost: 1 ton of steel = 2 tons of lumber (30/15). For trade to be beneficial, the opportunity costs between the two countries must be different. Let S be Country Dynamic's steel production. Its opportunity cost for 1 ton of steel is 40/S tons of lumber. Trade is not beneficial only if the opportunity costs are equal: 40/S = 2, which means S = 20. Therefore, for trade to be beneficial, Country Dynamic must be able to produce any amount of steel other than 20 tons.
- Assume Japan has a comparative advantage in producing high-tech electronics and Brazil has a comparative advantage in producing coffee. If these two countries enter into a free trade agreement, which of the following outcomes is most likely?
Answer: Resources in Brazil will shift toward coffee production, while resources in Japan will shift toward electronics production.
The principle of comparative advantage states that countries should specialize in producing and exporting goods for which they have a lower opportunity cost. Brazil, with a comparative advantage in coffee, will allocate more resources (land, labor, capital) to coffee production. Japan, with a comparative advantage in electronics, will allocate more resources to that sector. This specialization increases total output and allows both countries to benefit from trade.
- Based on the information in the passage, which statement correctly describes the comparative and absolute advantages?
Answer: Vietnam has a comparative advantage in smartphones and an absolute advantage in both goods.
Absolute advantage: Vietnam can produce more of both goods per hour (6>5 T-shirts, 2>1 smartphones), so it has an absolute advantage in both. Comparative advantage: Calculate opportunity costs. Vietnam: 1 smartphone = 3 T-shirts (6/2). Mexico: 1 smartphone = 5 T-shirts (5/1). Since Vietnam gives up fewer T-shirts to make a smartphone (3<5), it has the comparative advantage in smartphones. Conversely, Mexico has the comparative advantage in T-shirts (1/5 smartphone < 1/3 smartphone).
- Given this information, if the United States engages in free trade, the theory of comparative advantage predicts that the U.S. will...
Answer: import wine and export corn, causing the domestic price of corn to rise.
A domestic price lower than the world price indicates a comparative advantage in that good. Thus, the U.S. has a comparative advantage in corn and will export it. A domestic price higher than the world price indicates a comparative disadvantage, so the U.S. will import wine. When the U.S. exports corn, the domestic supply decreases relative to demand, and the domestic price rises toward the higher world price. When it imports wine, the domestic supply increases, causing the price to fall toward the lower world price.
- A politician states, 'Every time we buy a product from another country, we are losing. That's a dollar that doesn't go to a domestic worker. Trade is a contest, and we are being outcompeted.' This argument is economically flawed because it incorrectly assumes that...
Answer: international trade is a zero-sum game, where one country's gain is necessarily another's loss.
The politician's argument frames trade as a win-lose situation, which is the definition of a zero-sum game. The principle of comparative advantage demonstrates that trade is a positive-sum game. By specializing in what they do best (at the lowest opportunity cost) and trading, both countries can achieve higher levels of consumption and economic well-being. The 'loss' of a dollar on an import is offset by the gain from acquiring a good more cheaply than it could be produced domestically.
- A country's decision to specialize in and export a particular good is most efficient when that decision is based on the good for which the country has the...
Answer: lowest domestic opportunity cost of production.
The principle of comparative advantage is the foundation for efficient specialization and trade. A country has a comparative advantage in a good if it can produce that good at a lower opportunity cost than its trading partners. By specializing in this good, it uses its resources most efficiently relative to other production possibilities, leading to greater overall output and gains from trade. Absolute advantage is not the correct guide for specialization.
- The fundamental source of the gains from international trade, even when one country is more productive in all industries, lies in...
Answer: the increased total world output that results from specialization based on differing opportunity costs.
The core reason trade is beneficial is that it allows for a more efficient global allocation of resources. When countries specialize in what they produce at the lowest relative opportunity cost, total world production increases. Trade is the mechanism that allows the citizens of each country to share in this larger global output. Other options describe potential secondary benefits (A) or mechanisms that facilitate trade (D), but they are not the fundamental source of the gains.
- International trade based on comparative advantage is economically beneficial under most circumstances. However, in which of the following scenarios would two countries not gain from trading with each other?
Answer: When the two countries have identical opportunity costs for the production of all goods.
The gains from trade arise from differences in opportunity costs. If two countries have identical opportunity costs, their trade-off ratios for producing goods are the same. This means there is no relative price difference to exploit through specialization and trade. Neither country can acquire a good from the other at a lower opportunity cost than producing it domestically. Therefore, there is no basis for trade. Distractor A describes a classic scenario where trade is still beneficial.
