Consider an equation to explain salaries of CEOs in terms of annual firm sales, return on equity (roe, in percentage form), and return on the firm's stock (ros, in percentage form): log(salary) =)60 + /B1log(sales) + fi2roe + fi3ros + u.

Required:
In terms of the model parameters, state the null hypothesis that, after controlling for sales and roe, ros has no effect on CEO salary. State the alternative that better stock market performance increases a CEO’s salary.

Suppose that the u. s. dollars-mexican pesos exchange rate is fixed by the u. s. and mexican governments. assume also that labor is mobile between the united states and mexico due to low transportation costs. which of the following situations is likely to happen as a result of a simultaneous increase in the demand for u. s. goods and decrease in the demand for mexican goods? (pick mexican unemployment rate increases, and the country undergoes bad economic times for a sustained u. s. unemployment rate increases, and the country undergoes bad economic times for a sustained mexican unemployment rate rises at first, but it soon drops as unemployed mexicans move to the united states for mexican unemployment rate rises at first, but then it drops as mexican pesos depreciate against u. s. dollars.