Vector autoregressions (VARs) are economically interpretable only when identified by being transformed into a structural form (the SVAR) in which the contemporaneous variables stand in a well-defined causal order. These identifying transformations are not unique. It is widely believed that...

Woodford's Interest and Prices is considered from a methodological point of view. While innovative as a work of macroeconomic theory, it is decidedly in the mainstream methodologically. As such, it provides a good example of the methodological puzzles posed by modern macroeconomics: first, the...

Graph-theoretic methods of causal search based in the ideas of Pearl (2000), Spirtes, Glymour, and Scheines (2000), and others have been applied by a number of researchers to economic data, particularly by Swanson and Granger (1997) to the problem of finding a data-based contemporaneous causal...

Milton Friedman is usually regarded as an instrumentalist on the basis of his infamous claim that economic theories are to be judged by their predictions and not by the realism of their assumptions. This interpretation sits oddly with Friedman's empirical work - e.g., Friedman and Schwartz's...

In his own view, economic theory was important to Keynes's work as an economists. Aside from the General Theory, most of his economic writings, however policy oriented make explicit reference to theory. Nevertheless, Keynes's theoretical style is so far from what contemporary economics regards...

Post-Walrasian economics is not a doctrine, but a slogan announcing that something has to change. In this paper, I explore a conservative version of post-Walrasian economics that can be summarized as back to the methodology of Alfred Marshall's - particularly to his essay, "The Present Position...

The 1970s and early 1980s witnessed two main approaches to the analysis of monetary policy. The first is the early new classical approach of Lucas, based on the assumptions of rational expectations and market clearing. The second is the atheoretical econometrics of Sims's VAR program. Both have...

The 1970s and early 1980s witnessed two main approaches to the analysis of monetary policy. The first is the early new classical approach of Lucas, based on the assumptions of rational expectations and market clearing. The second is the a theoretical econometrics of Simsâ??s VAR program. Both...

The work of Levine and Renelt (1992) and Sala-i-Martin (1997a, b) which attempted to test the robustness of various determinants of growth rates of per capita GDP among countries using two variants of Edward Leamerâ??s extreme-bounds analysis is reexamined. In a realistic Monte Carlo experiment...