When the real output of an economy is above its equilibrium output, _____
a. sales increase unexpectedly
b. inventories begin to grow as output remains unchanged
c. businesses will increase their level of production
d. there will be a decrease in the stock of inventories
b
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You have collected data for a cross-section of countries in two time periods, 1960 and 1997, say
Your task is to find the determinants for the Wealth of a Nation (per capita income) and you believe that there are three major determinants: investment in physical capital in both time periods (X1,T and X1,0), investment in human capital or education (X2,T and X2,0), and per capita income in the initial period (Y0). You run the following regression: ln(YT) = ?0 + ?1X1,T + ?2X1,0 + ?3X2,T + ?4X1,0 + ln(Y0) + uT One of your peers suggests that instead, you should run the growth rate in per capita income over the two periods on the change in physical and human capital. For those results to be a parsimonious presentation of your initial regression, what three restrictions would have to hold? How would you test for these? The same person also points out to you that the intercept vanishes in equations where the data is differenced. Is that true? What will be an ideal response?
Under which of the following scenarios would a park be considered a common resource?
a. Visitors to the park must pay an admittance fee, but there are always plenty of empty picnic tables. b. Visitors to the park must pay an admittance fee and frequently all of the picnic tables are in use. c. Visitors can enter the park free of charge and there are always plenty of empty picnic tables. d. Visitors can enter the park free of charge, but frequently all of the picnic tables are in use.