In the context of economic management, with final targets for money GDP, wealth and the foreign exchange reserves, the exchange rate can be treated as an intermediate target. Monetary policy is used to keep the exchange rate close to its target and the target itself adjusts in response to...

SpaceTime 4.0 is cross-platform mathematics software available for the iPhone/iPad under iOS, as well as other devices. It can be used to implement usable DSGE modeling tools; this includes the solution of linear rational expectations, solving optimal linear-quadratic policy problems, obtaining...

Simple intertemporal consumption theory implies that non-durable consumption is a random walk, but that consumption cointegrates with income and wealth. By the Granger representation theorem, there must be a (vector) error correction mechanism ((V)ECM) representation of the data; but from the...

We study discretionary equilibria in dynamic linear-quadratic rational expectations models. In contrast to the assumptions that pervade this literature we show that these models do have multiple equilibria in some situations. We investigate general properties of discretionary equilibria. We...

In the context of economic management, with final targets for money GDP, wealth and the foreign exchange reserves, the exchange rate can be treated as an intermediate target. Monetary policy is used to keep the exchange rate close to its target and the target itself adjusts in response to...