What questions do political scientists and economists ask

What explains the political difference among african americans politicians during reconstruction

The law of increasing costs states that as a country produces less of one product and more of another, there is an increase in the resources needed to expand production of the second product.

All of the following are reasons that rome was so strong and powerful except a. rome had excellent soldiers c. they were armed with a gladius and pilum b. they had legions d. they valued education and intellect