TABLE 1: PRODUCTION CAPPABILITIES OF COUNTRY X Increasing opportunity cost is more realistic, but constant opportunity cost curves are sometimes more useful for demonstrating concepts like comparative advantage.Table 1 shows the combinations of sugar and bananas that Country X is capable of producing using ALL of its resources. This is called increasing opportunity cost and is represented by a curved line like the one seen in Graph 14-4. In this case, the cost to produce cars actually increases. As more and more cars are produced, however, some of those skilled tractor workers get pulled away from tractors, and tractor output decreases by more than two per car. The first few cars can probably be produced without sacrificing many tractors. It is likely that some workers in this factory are more skilled at assembling tractors than cars.
In real life, resources are not usually perfectly interchangeable between different uses. If these costs remain the same, the PPC will be a straight line, indicating that opportunity costs are constant. Every car costs two tractors, and every tractor costs half a car. A second car would cost the company two more tractors, putting them at 96 tractors, 2 cars, and so on. This would put the factory at a new point on the PPC:98 tractors, 1 car. If the factory is producing 100 tractors and decides to produce one car, it must re-allocate resources that were being used to make two tractors. In this way, a PPC can demonstrate economic growth in one or both goods found on the graph.Ī PPC is a visual way to represent opportunity cost. In that case, the entire line would shift to the right. For that to happen, the company would need to purchase more metal, hire more workers, or run the assembly line longer (or all three). There aren’t enough resources, for example, to produce 55 tractors AND 35 cars. Graph 14-2Īccording to the model, any point beyond or “above” the line is technically impossible to achieve. Any point under a PPC is considered inefficient or wasteful.
#Production possibility curve diagram full
In this scenario, some resources (time and skill) were wasted, thus the company did not produce to its full potential. At the end of that day, the manager looks at the production numbers and sees that 40 tractors and 10 cars were produced.
Using the factory from the beginner reading, assume that one day, several of the workers goof off, take a longer lunch break, and clock out early. Individuals, businesses and countries are not always efficient and sometimes waste resources. The combination of goods the party chooses to produce can be influenced by preferences or market demand. Any point along a PPC is considered “productively efficient,” which means the producer or nation is using all of its productive resources as efficiently as possible. Importantly, all points on the line are potential output combinations.Īll PPC models use this same logic, no matter what is being produced. Connecting points A, B and C with a line creates a PPC. The factory owners may choose to allocate half of their resources to tractors and half to cars and produce at point B. From this, we can infer that cars require more resources (time, technical expertise, materials, etc.) to produce.
If it produces ONLY cars, it can produce a maximum of 50 per day (point C on the graph). If it produces ONLY tractors, it can produce a maximum of 100 per day (point A on the graph). Graph 14-1 shows a theoretical factory that can be set up to produce tractors or cars. The model assumes that one producer or country, using all of their productive resources, can produce two goods or two categories of goods – for example, regular soda or diet soda, military goods or consumer goods. A production possibilities curve or frontier ( PPC or PPF) is a model used in economics to analyze tradeoffs and opportunity costs.
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