(Last Word) The U. S. Internet search market: A. has no barriers to entry. B. is best characterized by pure competition. C. has a few prominent firms that each possesses a relatively equal market share. D. is dominated by Google, which controls about 70 percent of the market.

The average daily foreign exchange trading by banks around the world is closest to $ a. 1.5 trillion b. 1 trillion c. 600 billion d. 700 billion e. 1.3 trillion

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

Ail industries uses activity-based costing to assist management in setting prices for the company's three major product lines. the following information is available: activity cost pool estimated overhead expected use of cost driver per activity cutting $1,000,000 25,000 labor hours stitching 8,000,000 320,000 machine hours inspections 2,800,000 160,000 labor hours packing 960,000 64,000 finished goods units compute the activity-based overhead rates. (round answers to 2 decimal places, e.g. 12.25.)