In a simple economy without government or the foreign sector, saving must equal investment because output is divided into consumption and investment, and income is either consumed or saved

Between 1960 and 2010, the labor force participation rate for men

A) decreased in most years. B) increased in most years. C) did not change. D) fluctuated, first rising until about 1989 and after that, then falling. E) did not change until 1992, after which it generally increased.

The table above shows Randy's Shirts' short-run production function. Randy hires workers at a wage rate of $50 a day and his total fixed cost is $100

a) What is the marginal product of the 3rd worker? b) What is Randy's average fixed cost if 48 shirts are produced? c) What is Randy's average variable cost if 56 shirts are produced? d) What is Randy's marginal cost of producing the 52nd sweater? e) What is Randy's average total cost if 48 sweaters are produced?