Suppose a worker’s skill is captured by his efficiency units of labor. The distribution of efficiency units in the population is such that worker 1 has one efficiency unit, worker 2 has two efficiency units, and so on. There are 100 workers in the population. In deciding whether to migrate to the United States, these workers compare their weekly earnings at home ( w0) with their potential earnings in the United States (w1).The wage-skills relationship in each of the two countries is given byw0 = 700 + 0.5sandw1 = 670 + swhere s is the number of efficiency units the worker possesses.a. Assume there are no migration costs. What is the average number of efficiency units among immigrants? Is the immigrant flow positively or negatively selected?b. Suppose it costs $10 to migrate to the United States. What is the average number of efficiency units among immigrants? Is the immigrant flow positively or negatively selected?

Consider the following information: Suppose the median annual earnings of white females are 28% lower than the median annual earnings of white males. This means that: Neither of the other conclusions can be drawn from this one statistic.   There is no discrimination against females; females just do less-dangerous work than males.   There is no discrimination against females; females just have less human capital than males.

Answer below questions with reference to the following figure, which reports population change in Australia (by age groups) over the period 1999 to 2019. What does the population pyramid indicate about Australia’s age structure?  What is the potential implication of the observed age structure for Australia’s dependency ratio (youth versus elderly dependency ratio)? What does the population pyramid indicate about the stage of demographic transition in Australia?

We studied three measures of wage dispersion and two measures of wage asymmetry in the chapter. What are they?

What differences can you tell between high- and low-income countries regarding educationlevel and fertility rates (TFR)  Use Quantity-Quality Tradeoff theory to explain thedifferences

If one worker can pick $10 worth of grapes and two workers together can pick $24 worth of grapes, the Multiple Choice marginal revenue product of the second worker is $14. marginal revenue product of each worker is $17. data given are insufficient to determine the marginal revenue product of either worker. marginal revenue product of the first worker is $14.

Workers in countries such as Sweden and Germany work fewer hours per week, on average, than do workers in the United States. Does this mean that Swedes and Germans are lazier than Americans? Explain how laziness could be interpreted in the context of the work-leisure choice model developed in this chapter. What other information might you want to gather to determine whether Swedes or Germans were indeed less work oriented that Americans?

2. Suppose the table represents the production function of both Mexico and Spain. Use the following information to answer the next question. K = Capital (trillions) Y = Output (trillions) Country L = Population (millions) Mexico Spain 105 45 0.18 0.74 1.0 1.7 0

Consider an individual who lives for three periods. In the first period, the individual may either work or go to school, but not both. In the second and third period, the individual will work regardless of what their decision for the first period was. If the individual decides to work in the first period, then he/she will earn $40 in period 1, $50 in period 2, and $60 in period 3. If the individual decides to go to school in period 1, then she has to pay $100 in period 1; however, his/her earnings in period 2 will be $125 and in period 3 will be $275. Suppose that th discount or interest rate is constant at 7%. (Hint: period 1 refers to today and therefore does not require discounting) a) Calculate the present value, if the individual chooses to work in the first period. b) Calculate the present value, if the individual chooses to go to school in the first period. c) Should the individual acquire education or not? d) Explain how the cost of education will influence the individual's…