Country a has a mixed economy with free-market leanings. country b has an absolute command economy. both want to increase corn product exports. which action would country a most likely take that country b would not?

Since Country A is a mixed economy its basically Socialism. Socialism is a mixture of Communism and Capitalism. One thing Country A can do is add changes to there exports. However, Country B wouldn't be allowed to do that, because they follow a command economy. They have to do everything based on what the leaders command.

Fiscal policy because it refers to the use of government spending and tax policies to influence macroeconomic conditions, including aggregate demand, employment, inflation, and economic growth.