-Explica la diferencia entre PIB real, nominal, PPA y per cápita.

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

Which part/word/phrase in the passage refers to a business’s financing activity seen in a cash flow statement? nathan works as an accountant in a footwear manufacturing company. he is currently preparing the cash flow statement for his employer. during the given accounting period, the company purchased raw materials worth $25,000. it also bought new equipment worth $75,000 to increase its production output. further, it borrowed a long-term bank loan of $100,000 to facilitate further expansion. finally, the company spent $50,000 on advertising its latest brand of footwear in the market. {lol i guessed its "it borrowed a long-term bank loan of $100,000 to facilitate further expansion" and thats correct}

U. s. internet advertising revenue grew at the rate of r(t) = 0.82t + 1.14 (0 ≤ t ≤ 4) billion dollars/year between 2002 (t = 0) and 2006 (t = 4). the advertising revenue in 2002 was $5.9 billion.† (a) find an expression f(t) giving the advertising revenue in year t.