Substitution and income effects of a change in price of a good may be used to explain the:
a. inverse relationship between price and quantity demanded.
b. direct relationship between price and quantity purchased.
c. inverse relationship between price and quantity demanded.
d. direct relationship between price and quantity supplied.
e. direct relationship between income and demand.

The hawthorne works was a large western electric factory with 45,000 employees. during the 1920s and 1930s, hawthorne works was the site of some well-known industrial studies. in one of the studies, researchers investigated the impact of different working conditions on worker productivity. prior to the start of the study, researchers secretly measured workers' productivity for several weeks. then researchers chose two workers, who then chose their own teams. the teams were separated from the general workforce and completed their work in different experiment rooms where the researchers could observe them more easily. over a 5-year period researchers manipulated the structure of the workday for each team (number and duration of breaks and number of hours per shift). for each of these changes in working conditions, the researchers measured the effect on productivity. for some conditions, such as frequent short breaks, workers rebelled by intentionally decreasing productivity.why did the researchers secretly measure the workers' productivity before creating the two treatment groups? a, to create similar treatment groups so that a cause-and-effect relationship could be establishedb, to draw conclusions about the productivity of all workers in the plant based on the test groupsc, to directly control for confounding variablesd, to provide a baseline for measuring worker productivity

Emily sold the following investments during the year: stock date purchased date sold sales price cost basis a. 1,000 shares dot com co. 03-21-2007 02-04-2018 $20,000 $5,000 b. 500 shares big box store 05-19-2017 01-22-2018 $8,200 $7,500 c. 300 shares lotta fun, inc. 10-02-2017 09-21-2018 $3,000 $4,500 d. 700 shares local gas co. 06-17-2017 11-11-2018 $14,000 $17,000 for each stock, calculate the amount and the nature of the gain or loss.

73. calculate the weighted average cost of capital (wacc) based on the following information: the equity multiplier is 1.66; the interest rate on debt is 13%; the required return to equity holders is 22%; and the tax rate is 35%. (a) 15.6% (b) 16.0% (c) 15.0% (d) 16.6% (e) none of the above