The standard model of Economic Development is Romer’s (1989, JPE 1990) adaptation* of Solow’s (1956, 1957) Model.  Basically, became Y = AKα(HL)(1-α) where the H stands for “human capital,” which multiplies the ability of labor. (Think high-skills labor—construction work, plumbing, teaching—where the worker continually “learns by doing” [op cit., Arrow, 1962]. The additional “human capital” […]

Many years ago, I had a Cultural Anthropology professor who discussed the glories of the mechanical cherry-picker. The only catch was that (1) it had upfront and maintenance costs and (2) it performs less well than experienced cherry-pickers. In short, it would be useful if you have a shortage of labor and an excess of […]

My aging Subaru had a problem a while back. Leak of transmission fluid; a seal or another failing, leading to steady dripping out. And with little need to open the hood, no gauge—or even an “idiot light”—on the dashboard, it dripped for quite a while. And then some. The first repair—call it Quizzical Effort 1—refilled […]

Robert Waldmann Don’t say you weren’t warned. I am trying to understand the effects of the switch from mechanically controlled machine tools to electronically controlled machine tools and then to digitally controlled machine tools. I don’t really know much about machine tools, but, then again, I don’t know much about firms or the business cycle […]