Dynamic stochastic general equilibrium

Dynamic stochastic general equilibrium modeling (abbreviated DSGE or sometimes SDGE or DGE) is a branch of applied general equilibrium theory that is influential in contemporary macroeconomics. The DSGE methodology attempts to explain aggregate economic phenomena, such as economic growth, business cycles, and the effects of monetary and fiscal policy, on the basis of macroeconomic models derived from microeconomic principles.

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  • As originally conceived, macro is about explaining national-level data series like employment, output and prices. Eventually, economists realized that to explain those things, they would need to understand the smaller pieces of the economy, such as consumer behavior or competition between companies. At first, they just imagined or postulated how these elements worked -- that’s the core of DSGE.

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