The Alcoa case Multiple Choice

a. supported the structuralist approach to antitrust.
b. struck down the treble damages provision of the antitrust laws.
c. called for federal regulation of any industry with a four-firm concentration ratio in excess of 50 percent.
d. decision was consistent with a behavioralist approach.

Ithinks it’s a and d

The business cycle is the periodic but irregular up-and-down movement in economic activity, measured by fluctuations in real gross domestic product (gdp) and other macroeconomic variables. a business cycle is typically characterized by four phases—recession, recovery, growth, and decline—that repeat themselves over time. economists note, however, that complete business cycles vary in length. the duration of business cycles can be anywhere from about two to twelve years, with most cycles averaging six years in length. some business analysts use the business cycle model and terminology to study and explain fluctuations in business inventory and other individual elements of corporate operations. but the term "business cycle" is still primarily associated with larger (industry-wide, regional, national, or even international) business trends.