Economists call education "an investment in human capital." Define capital. Investments are undertaken to earn a rate of return. Describe the return...

Economists call education "an investment in human capital." Define capital. Investments are undertaken to earn a rate of return. Describe the return to an investment in a college education. How would you go about measuring the return, how would you decide if it is good enough to warrent the investment and in what sense is education capital?Explain your reasoning.