Consider Economia, a nation that produces only clothes and food. On their straight-line PPF, food is measured on the horizontal axis and clothes are measured on the vertical axis. If Economia produces no food, it can produce 1200 units of clothing; if it produces no clothing, it can produce 4800 units of food.  Calculate the slope of the nation's PPF. Economia would like to produce one more unit of food. To do so, it must sacrifice how many units of clothing?

Ashwin likes to spend her spare time in summer in one of two ways: (i) watching cricket (x) at Sydney Cricket Ground or (ii) watching movies (y) at Ritz cinema. In choosing how to entertain herself, she considers both constraints---money and time. Part I Ashwin has 48 hours of spare time in a month. A cricket game runs for 8 hours, while each visit to the movies takes up 4 hours. Each month, Ashwin also has $324 to spend on entertainment. A ticket for a cricket game costs $45. A visit to the movie costs $36. Write down Ashwin's budget constraint and time constraint. (a) (b) Draw Ashwin's budget constraint and time constraint in a clearly labelled diagram. Label all axis intercepts in the two axes (x and y) and the point of intersection of the two budget lines. Shade the set of bundles that Ashwin can afford (those satisfying both his time and money constraints) with vertical lines. Part II Sam---a friend of Ashwin---has the same amount of spare time (48 hours per month) and same amount…

An economy consists of three workers: Gilberto, Lorenzo, and Sam. Each works 10 hours a day and can produce two services: mowing lawns and washing cars. In an hour, Gilberto can either mow 2 lawns or wash 1 car; Lorenzo can either mow 1 lawn or wash 1 car; and Sam can either mow 1 lawn or wash 2 cars. For each of the scenarios listed in the following table, determine how many lawns will be mowed and how many cars will be washed per day and enter these values into the corresponding row. Scenario Lawns Mowed Cars Washed All three spend all their time mowing lawns. (A)     All three spend all their time washing cars. (B)     All three spend half their time on each activity. (C)     Gilberto spends half his time on each activity, while Lorenzo only washes cars and Sam only mows lawns. (D)       In the following table, identify the opportunity cost of washing cars for each worker. Worker Opportunity Cost of Washing Cars Gilberto…

If country A uses all of its resources efficiently, it can produce a maximum of 100 units of good X.  If country A uses all of its resources efficiently, it can produce a maximum of 150 units of good Y. If country B uses all of its resources efficiently, it can produce a maximum of 75 units of good X.  If country B uses all of its resources efficiently, it can produce a maximum of 125 units of good Y.  Both countries have (linear) straight line PPFs.  If these countries were going to trade after specializing in their respective comparative advantages, which of the following trades would be considered to be mutually beneficial where BOTH countries gain from trade (and are strictly better off than in autarky, the situation where they both self-reliant and do not trade with one another)? trade at a rate of 3X for 4Y trade at a rate of 2X for 3Y trade at a rate of 5X for 8Y trade at a rate of 3X for 5Y