In the december, 1969, american economic review (pp. 886-896), nathanial leff reports the following least squares regression results for a cross section study of the effect of age composition on savings in 74 countries in 1964: log s/y = 7.3439 + 0.1596 log y/n + 0.0254 log g - 1.3520 log d1 - 0.3990 log d2 (r2 = 0.57) log s/n = 8.7851 + 1.1486 log y/n + 0.0265 log g - 1.3438 log d1 - 0.3966 log d2 (r2 = 0.96) where s/y = domestic savings ratio, s/n = per capita savings, y/n = per capita income, d1 = percentage of the population under 15, d2 = percentage of the population over 64, and g = growth rate of per capita income. are these results correct? explain

Ajustification for job training programs is that they improve worker productivity. suppose that you are asked to evaluate whether more job training makes workers more productive. however, rather than having data on individual workers, you have access to data on manufacturing firms in ohio. in particu- lar, for each firm, you have information on hours of job training per worker (training) and number of nondefective items produced per worker hour (output). (i) carefully state the ceteris paribus thought experiment underlying this policy question. (ii) does it seem likely that a firm’s decision to train its workers will be independent of worker characteristics? what are some of those measurable and unmeasurable worker characteristics? (iii) name a factor other than worker characteristics that can affect worker productivity. (iv) if you find a positive correlation between output and training, would you have convincingly established that job training makes workers more productive? explain.

Why might a business based on a fad be a good idea? question 2 options: fads bring in the most customers. some fads are longer lasting than expected. fads have made some business owners incredibly wealthy. fads can take a business in a new direction.

On january 1, 2017, sophie's sunlounge owned 4 tanning beds valued at $20,000. during 2017, sophie's bought 3 new beds at a total cost of $14 comma 000, and at the end of the year the market value of all of sophie's beds was $24 comma 000. what was sophie's net investment