Kara was earning $40,000 per year. When her income rose to $60,000 per year, she enjoyed the higher level of consumption for a while, but eventually she was no more happy than when she earned $40,000 (assume prices didn't change over this time period). Economist Richard Easterlin described this as .

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.

The land can lead to a new world power #buildthewall