XLII. On frictional electricity

Xlii. Some Esters of Palmitic Acid

On Frictional Mechanical Systems

Frictional torque on a rotating disc

Resistance to motion often includes a dry frictional term independent of the speed of an object and a fluid drag term varying linearly with speed in the viscous limit. (At higher speeds, quadratic drag can also occur.) Here, measurements are performed for an aluminium disc mounted on bearings that is given an initial twist and allowed to spin until it comes to a stop. It is found that a sum of ...

Frictional Coordination

The notion that business cycles are driven by demand shocks is subtle. I first review some of the conceptual and empirical challenges faced when trying to accommodate this notion in micro-founded, general-equilibrium models. I next review my own research, which sheds new light on the observed business cycles by accommodating frictional coordination in the form of higher-order uncertainty. This ...

Frictional Assignment

This paper examines the time-consuming process of matching the two sides of a market each having diverse characteristics. This is cast in a labor market setting where workers of di®erent skills need be matched with di®erent machine qualities to produce output. I characterize the e±cient allocation and then show that it can be decentralized by a competitive framework. A prominent feature of the ...