To get the labor to expand its production of some goods, an economy must ______ the production of other goods.

_____ occur when the cost per unit depends on the size of the industry but not necessarily on the size of any one firm.

_____ occur when the cost per unit depends on the size of an individual firm but not necessarily on that of the industry.

He was was one of the most influential economists of his time and he was struck by the phenomenon of “industrial districts”—geographical concentrations of industry that could not be easily explained by natural resources.

The following are modern examples of industries except _____.

One of the sources of internal economies is the way that a cluster of firms can create a pooled market for workers with highly specialized skills.

Companies can acquire technology through their own research and development efforts and learn from competitors by studying their products and reverse engineering.

Marshall argued that there are three main reasons why a cluster of firms may be more efficient than an individual firm in isolation. These reasons are_____.

The total output of an economy is 350 and its average labor input is 1.675, what is its total labor input?