Discuss whether the human capital and signaling models have different implications for each of the following education policies: A. Providing financial aid to students for college.
B. Introducing a test that high school students could take to provide reliable measures of task commitment and capacity to work effectively in teams.
C. Increasing the age at which students can drop out of high school from 16 to 17.

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.