2use the data in wage2.raw for this exercise. (i) estimate the model log(wage) 5 b0 1 b1educ 1 b2exper 1 b3tenure 1 b4married 1 b5black 1 b6south 1 b7urban 1 u and report the results in the usual form. holding other factors fixed, what is the approximate difference in monthly salary between blacks and nonblacks? is this difference statistically significant? (ii) add the variables exper 2 and tenure2 to the equation and show that they are jointly insignificant at even the 20% level. (iii) extend the original model to allow the return to education to depend on race and test whether the return to education does depend on race. (iv) again, start with the original model, but now allow wages to differ across four groups of people: married and black, married and nonblack, single and black, and single and nonblack. what is the estimated wage differential between married blacks and married nonblacks?

An instance where sellers should work to keep relationships with customers is when they instance where selllars should work to keep relationships with customers is when they feel that the product

Suppose that xtel currently is selling at $40 per share. you buy 500 shares using $15,000 of your own money, borrowing the remainder of the purchase price from your broker. the rate on the margin loan is 8%. a. what is the percentage increase in the net worth of your brokerage account if the price of xtel immediately changes to (a) $44; (b) $40; (c) $36? (leave no cells blank - be certain to enter "0" wherever required. negative values should be indicated by a minus sign. round your answers to 2 decimal places.) b. if the maintenance margin is 25%, how low can xtel’s price fall before you get a margin call? (round your answer to 2 decimal places.) c. how would your answer to requirement 2 would change if you had financed the initial purchase with only $10,000 of your own money? (round your answer to 2 decimal places.) d. what is the rate of return on your margined position (assuming again that you invest $15,000 of your own money) if xtel is selling after one year at (a) $44; (b) $40; (c) $36? (negative values should be indicated by a minus sign. round your answers to 2 decimal places.) e. continue to assume that a year has passed. how low can xtel’s price fall before you get a margin call? (round your answer to 2 decimal places.)

Differentiate between the trait, behavioral, and results-based performance appraisal systems, providing an example where each would be most applicable.