This document discusses macroeconomics and key economic concepts. It provides background on China's shift from Mao Zedong to Deng Xiaoping's new worldview in 1978 that embraced market reforms. It then defines important macroeconomic terms including GDP, GDP per capita, market value, goods and services, percentage change, and how GDP is calculated by totaling consumption, investment, government spending, and net exports. GDP and GDP per capita statistics are given for the global economy and for the United States and China.