Penny invests $10,000 today into a retirement account. She expects to earn 7.8 percent, compounded annually, on her money for the next 10 years. After that, she wants to be more conservative, so she expects to earn only 4.2 percent, compounded annually. How much money will she have in her account when she retires 25 years from now, assuming this is the only deposit she makes

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.