This chapter develops a toolkit of neoclassical macroeconomic models, and applies these models to the US economy from 1929 to 2014. We first filter macroeconomic time series into business cycle and long-run components, and show that the long-run component is typically much larger than the...

Recent time series studies reject the hypothesis of catching up in terms of international per capita incomes as derived from the traditional neoclassical growth model. In turn, they seem to support new theories of economic growth which are capable of explaining persistent international...