This paper studies price setting within a chain of grocery stores, using a scanner database that contains observations of retail prices for 435 products within 75 stores over 121 weeks. We find price dispersion within the chain. Stores differentiate themselves by the prices of relatively few...

The paper assumes a government advantage in collecting income contingent payments and develop a proposal for a government loan program that is an integral part of the tax system. The focus is on administrative costs and the difference between the collection technologies available to the public...

I study an example of a competitive environment in which trade occurs in a sequential manner. In this example, a country with a stable demand may suffer from trade with a country with unstable demand, there may be too much trade, a country may import and export the same good in the same period...

I examine the implementation of the Friedman rule under the assumption that age dependent lump sum transfers are possible and private intermediation is costly. This is done both in an infinitely lived agents model and in an overlapping generations model. I argue that in addition to a zero...

Why do people hold dollar denominated assets when higher rate of return alternatives are available? Can a country collect seigniorage payments from other countries in the long run? Does the supplier of the international currency benefit from doing so? I provide qualitative answers to these...

The welfare gains from adopting a zero nominal interest policy depend on the implementation details. Here I focus on a government loan program that crowds out lending and borrowing and other money substitutes. Since money can be costlessly created the resources spent on creating money...

We use large unpublished data set about the prices by store of 381 products collected by the Israeli bureau of statistics during 1991-92 in the process of computing the CPI. On average 24% of the stores changed their price where the average is over products and months. Using the standard...

The welfare gains from adopting a zero nominal interest policy depend on the implementation details. Here I argue that implementing the Friedman rule by a government loan program may be better than implementing it by collecting taxes, even when lump sum taxes are possible. The government loan...

The standard power utility function is widely used to explain asset prices. It assumes that the coefficient of relative risk aversion is the inverse of the elasticity of substitution. Here I use the Kihlstrom and Mirman (1974) expected utility approach to relax this assumption. I use time...

This paper uses a recursive time-non-separable expected utility function to separate between the intertemporal elasticity of substitution (IES) and a measure of relative risk aversion to bets in terms of money (RAM). Risk premium does not require risk aversion. Changes in IES have large effects...