The following data give the dates of successive turning points in U. S. economic activity and the corresponding levels of real GDP at the time. Turning Point Date Real GDP (1996 $ billions) (A) July 1953 1992.2 (B) May 1954 1941.0 (C) Apr. 1957 2182.7 (D) Apr. 1958 2117.4 (E) Apr. 1960 2391.0 Which of the turning points are troughs? (A), (B), and (C) (C), (D), and (E) (A), (C), and (E) (B) and (D)

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

Ok, so, theoretical question: if i bought the mona lisa legally, would anyone be able to stop me from eating it? why or why not?

Which of the following is a competitive benefit experienced by the first mover firm in an industry? a. the first mover will be able to achieve a less steep learning curve. b. the first mover will be able to reduce the switching costs. c. the first mover will not have to patent its products or technology. d. the first mover will be able to reduce costs through economies of scale.