Typography

WWI Liberty bonds, which according to Neil Wallace circulated alongside Federal Reserve notes [ source ] What follows are some thoughts on the coexistence puzzle as well as the folks who find it interesting. There is plenty of hyperbole over the difference between freshwater and saltwater economists, but one peculiarity that surely distinguishes a freshwater economist from his saltier cousin is that they tend to be interested in the underlying motivations guiding monetary exchange, the so-called microfoundations of money. (Saltwater economists tend to be content with broad assumptions about monetary phenomena). Representatives of the microfounded approach, which includes the blogosphere's own David Andolfatto as well as Stephen Williamson —who has anointed his approach New Monetarism—like to refer to their models as "deep models of money". One of the classic questions that continues to interest deep money types is the so-called coexistence puzzle. Zero-yielding financial...

Miles Kimball gave me some help on understanding Wallace Neutrality , which in turn might help me understand more where Stephen Williamson is coming from when he says QE is irrelevant. I asked Miles: I'm not sure if I entirely understand the Wallace neutrality argument. If I may paraphrase, does it mean something like... the Fed could buy a bunch of stocks on the NYSE, and they might be able to push their prices up (their dividend rates down). But if they did so, the price of these stocks would rise above their intrinsic value and profit-seeking agents would immediately take the opposite side of the trade, thereby pushing the purchased stocks' value back to their intrinsic value. So in order for the Fed to permanently increase stock prices above their intrinsic value, there must be some sort of "friction" that prevents profit-seeking agents from taking the other side of the trade. Is that what it means? Miles: Yes... You said it very well. That's a relief. Someti...

I had an interesting conversation about microfoundations at David Andolfatto's blog . David's post comes on the heels of a number of other posts by various bloggers. See here , here , here , here , here , here , and here . Here is David: A narrow view of "microfoundations" is reflected in the idea that the methodology of microeconomic theory (specifying individual preferences, information sets, endowments, constraints, together with an equilibrium concept) can and should be brought to bear on macroeconomic questions. This is in contrast to an earlier methodology that specified and estimated behavioral relations at the aggregate level. (One can legitimately weigh the pros and cons of these (and other) methodologies.)  Not many macro models are "microfounded" in a pure sense. Almost all models make at least some assumptions that may be viewed as ad hoc and provisional (subject to further investigation). I think of an ad hoc assumption as a restriction on beha...