We compare estimates of the New Keynesian Phillips Curve (NKPC) when the curve is specified in two different ways. In the standard difference equation (DE) form, current inflation is a function of past inflation, expected future inflation, and real marginal costs. The alternative closed form...

In their 2010 comment (which we refer to as CS10), Cogley and Sbordone argue that: (i ) our estimates are not entirely closed form, and hence are arbitrary; (ii ) we cannot guarantee that our estimates are valid, while their estimates (Cogley and Sbordone 2008, henceforth CS08) always are; and...