Problem Set 1  Questions PDF  Solutions PDF
Chapter 3  National Income  Questions 2, 4a, 4b, and 5
Chapter 5  Inflation  Question 3
Chapter 6  The Open Economy  Questions 1, 2, and 11
The Production Function, Finding the Wage Rate, Rental Rate, and Labor's Share of Income (video 20:00)
From Mankiw's Macroeconomics (Intermediate), 8th Edition. Chapter 3 (National Income, where it comes from and where it goes), Problem 2  Part a and b
In this problem we are given a simple production function and a partially parameterized CobbDouglas Production Function. We derive output/production, then find the real wage rate (finding the marginal product of labor) and the rental rate of capital (finding the marginal product of capital along the way... actually the marginal product of land, but it's the same steps to find MPK). Lastly, finding the labor share of income, and the capital share of income. Plus a "trick" to find the factor share of income by just looking at the CobbDouglas production function.
Find the Labor Share of Income (video 7:45)
From Mankiw's Macroeconomics (Intermediate), 8th Edition. Chapter 3 (National Income, where it comes from and where it goes), Problem 2  Part c
In this question, we're given a partly parameterized CobbDouglas Production Function, and actual values for Labor and Capital (technically capital is land in this problem). We then find the portion of total income that goes to Labor. Plus show a trick, given any CobbDouglas Production Function with constant returns to scale, how you can look at the production function and find the labor share of income and capital share of income quickly.
Quickly find output, wages rental price of land, and labor's share of income (video 12:00)
From Mankiw's Macroeconomics (Intermediate), 8th Edition.
Chapter 3 (National Income, where it comes from and where it goes), Problem 2  Part d through e
In this video we quickly find output, wages rental price of land, and labor's share of income given a dramatic decrease in labor.

Returns to Scale Review
Chapter 5  Problem 3  No Review
(video 30:00) From Mankiw's Macroeconomics (Intermediate) 8th edition. Chapter 6 (The Open Economy), Problem 1, Part a.
In this first video, we overview the model for the small open economy. What are the determinants for net exports (the trade balances, capital flows), the real exchange rate, and the nominal exchange rate? We talk about trade surpluses, trade deficits, and the market for loanable funds for a closed economy and for a small open economy (SOE). We also do an example where consumer savings increases, analyzing the effect on net exports and exchange rates. The model of the small open economy. Given shocks to the economy (e.g. fall in consumer confidence, shift in investment, shift in preferences for foreign goods, an increase in the money supply, and a change in money velocity) find net exports (NX), the nominal and real exchange rates.
Chapter 6  Problem 2  No Review
Given data for national income, find national savings, investment, the trade balance and the real exchange rate.
Chapter 6  Problem 11  No Review
The open economy model, poor countries, "better production efficiency and legal protection," and the effect on investment. Plus how this might effect demand for loanable funds, the trade balances, the real world exchange rate
