Milton Friedman and Edmund Phelps argued in the late 1960s that in the long run the Phillips curve is a. downward-sloping, which implies that monetary and fiscal policies can influence the level of unemployment in the long run. b. downward-sloping, which implies that monetary and fiscal policies cannot influence the rate of inflation in the long run. c. vertical, which implies that monetary and fiscal policies cannot influence the level of unemployment in the long run. d. vertical, which implies that monetary and fiscal policies cannot influence the rate of inflation in the long run

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.

Ithink the answers would be a and c and e!