Increasing the number of stocks in a portfolio from 10 to 50 would likely decrease the systematic risk of the portfolio decrease the firm-specific risk of the portfolio decrease the return of the portfolio increase the variation in returns the investor faces in any one year

Gdp has grown in a country at 3% per year for the last 20 years. the labor force has grown at 2% per year and the quantity of physical capital has grown at 4% per year. a 1% increase in average physical capital per worker (other things equal) raises productivity by 0.3%. average education has not changed. how much has growing physical capital per worker contributed to productivity growth in this country? choose the correct answer from the following choices, and then select the submit answer button. answer choices 0.3% 0.6% 3.0% 6.0%