You just founded a tech startup with an incredible ROI of 100%. That is, each dollar you invest in the firm creates a permanent increase of one dollar in earnings for all time. Unfortunately, like most good things, this ROI will be gone after two years (this means you can invest at ROI=100% at the end of years 1 and 2). After that, the ROI will lze 7%. You plan on reinvesting all earnings as long as its profitable, your return on equity is 10%, and your projected earnings for year 1 will be $10 million. What are the earnings for your startup at the end of year 3? a. 40 million
b. 30 million
c. 20 million
d. 31 million
e. 19 million

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.