In this paper, we investigate the magnitude of errors that come about as a consequence of using a linear approximation to a well-known optimising model. We do this by taking a calibrated version of the neoclassical adjustment-cost model of investment due to Hayashi (1982).

In this paper we use an experimental approach to study the decisions of human subjects who are given cash incentives to solve a particular representative agent dynamic model widely studied in macroeconomics. In a representative agent dynamic model, an economy is modelled as a single decision...