TY - JOUR AU - Casares,Miguel AU - McCallum,Bennett T. TI - An Optimizing IS-LM Framework with Endogenous Investment JF - National Bureau of Economic Research Working Paper Series VL - No. 7908 PY - 2000 Y2 - September 2000 UR - http://www.nber.org/papers/w7908 L1 - http://www.nber.org/papers/w7908.pdf N1 - Author contact info: Bennett T. McCallum Tepper School of Business, Posner 256 Carnegie Mellon University Pittsburgh, PA 15213 Tel: 412/268-2347 Fax: 412/268-6830 E-Mail: bm05@andrew.cmu.edu AB - Dynamic optimizing models with an IS-LM-type structure and slow price adjustments have been used for much recent monetary policy analysis, but usually with capital and investment treated as exogenous a significant restriction. This paper demonstrates that investment decisions can be endogenized without undue complexity in such models and that these can be calibrated to provide reasonably realistic dynamic behavior. It is necessary, however, to include capital adjustment costs; models with no adjustment costs match cyclical data very poorly. Indeed, their match is considerably poorer than models with constant capital. The paper also finds that the preferred adjustment-cost specification is not close to quadratic. ER -