The unconditional expectation of social welfare is often used to assess alternative macroeconomic policy rules in applied quantitative research. It is shown that it is generally possible to derive a linear-quadratic problem that approximates the exact non-linear problem where the unconditional...

This article applies a traditional industrial organization framework to the issue of tax compliance. First, we model the "tax advice" industry where the supplier helps taxpayers reduce their tax liability. Then we exploit the fact that more convex demand function results in lower equilibrium...