When the demand for grapes increases and the supply of grapes decreases at the same time, we can predict that the:
a. price of grapes will fall

The table above gives a firm's total product schedule. Suppose labor is the only variable factor of production. The price of labor is $500 per week and total fixed costs are $600 per week. What is the total cost of producing 70 units?

A) $1,700 B) $1,900 C) $2,100 D) $2,300

The impact of financial markets on the economy comes partly through

A) the substitution effect. B) the wealth effect. C) the international trade effect. D) the travel effect.