The American Recovery and Reinvestment Act, signed by President Barack Obama in 2009, aimed at: closing an expansionary gap through a contractionary fiscal policy. stimulating the aggregate demand in the economy. providing higher unemployment benefits to the residents of the economy. removing the supply bottlenecks in the economy. ensuring free trade flows across the world.

Stimulating the aggregate demand in the economy.

Explanation:

The American Recovery and Reinvestment Act was a Recovery act enacted by the Federal Government to help the United States come out of what became known as the Great Recession of 2008. It's purpose was to increase the Aggregate Demand in the Economy by preserving people's Jobs and creating new ones as well as investing in infrastructure and energy. It also gave out temporary relief to the unemployed.

This fresh injection of money into the Economy helped boost Aggregate Demand.

answer; rapid growth in buyer demand and high buyer switching cost;