Apublisher of photography books finds that it is cost-effective to print 10,000 or more at a time. but abookstore orders only a few copies of each book since its customers want to select from a wide variety. this example shows: a. why discrepancies of quality occurb. why both discrepancies of quantity and assortment occurc. neither discrepancies of assortment or quantityd. why discrepancies of assortment occure. multichannel distribution

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.