6) which of the following is not studied in microeconomics?

(a) the impact of an increase in the unemployment rate on economic production
(b) the impact of higher fuel prices on the cost of airline tickets
(c) the impact of firms' collective hiring choices on the aggregate unemployment rate
(d) the effect of an increase in gasoline taxes on the purchase of gasoline

The statement "(A) the impact of an increase in the unemployment rate on economic production" is NOT studied in microeconomics.

Explanation: Macroeconomics studies the global functioning of the economy as an integrated set, in order to explain the evolution of economic aggregates, instead microeconomics is the discipline that studies the economic behavior of companies, households and individuals and their interaction with markets. Analyze how they make decisions to allocate their limited resources to the different possibilities.

answer; common market;