Explanation:

Typically an economic expansion is marked by an upturn in production and utilization of resources. Economic recovery and prosperity are two successive phases of expansion. Expansion may be caused by factors external to the economy, such as weather conditions or technical change, or by factors internal to the economy, such as fiscal policies, monetary policies, the availability of credit, interest rates, regulatory policies or other impacts on producer incentives. Global conditions may influence the levels of economic activity in various countries.