The S&P 500 index includes the stocks of 500 largest companies in the U.S

Spending on new housing, which economists refer to as residential fixed investment, is included in the consumption expenditures component of GDP

Indicate whether the statement is true or false

When new firms enter a monopolistically competitive industry, each existing firm's

A) demand curve shifts rightward. B) demand curve shifts leftward. C) marginal cost curve shifts rightward. D) marginal cost curve shifts leftward.