10. The overall levels of income, employment, and prices are determined by the spending and production decisions of all except which of the following.
A. Households
B. Businesses
C. Government
D. Foreign Sectors
or prodused in an

Anew equipment has been proposed by engineers to increase the productivity of a certain manual welding operation. the investment cost is $25,000, and the equipment will have a market value of $5,000 at the end of a study period of five years. increased productivity attributable to the equipment will amount to $10,000 per year after operating costs have been subtracted from the revenue generated by the additional production. if marr is 10%, is investing in this equipment feasible? use annual worth method.

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

Jeanie had always been interested in how individuals and businesses effectively allocate their resources in order to accomplish personal and organizational goals. that’s why she majored in economics and took on an entry-level position at an accounting firm. she is very interested in further advancing her career by looking into a specialization that builds upon her academic background, and her interest in deepening her understanding of how companies adjust their operating results to incorporate the economic impacts of their practices on internal and external stakeholders. which specialization could jeanie follow to get the best of both worlds? jeanie should chose to get the best of both worlds.