The paper analyzes the effect of economic incentives in the AFDC program on the employment of AFDC mothers. Multiple regression analysis is applied to cross-sectional aggregate state program data for 1967. Our estimates indicate that the level of guarantees, tax rates and set-asides affect AFDC employment rates in the direction predicted by economic theory. Short of a drastic reduction in guara...

Given a string on an integer alphabet, we present an algorithm that computes the set of all distinct squares belonging to this string in time linear to the string length. As an application, we show how to compute the tree topology of the minimal augmented suffix tree in linear time. Asides from that, we elaborate an algorithm computing the longest previous table in a succinct representation usi...

It is all about creating EPS—with graphics— to be merged with (La)TEX scripts. The emphasis is on creating raw PostScript for simple symmetrical pictures. Asides, like incorporating accurate graphs of math functions, typesetting text along curved paths, or tables set sideways, next to reverse video, clipping and tiling have been addressed. A poor man’s mftoeps approach is touched upon: (declara...

A popular interest in Shakespeare has been matched in recent years by an increasing number of computer-assisted analyses of the plays. Although not without their critics, corpus stylistic studies have offered scope and reliability in the study of literary texts, particularly through key word analyses. In this paper, I show how Wmatrix, a web-based corpus processing environment (Rayson, 2003, 20...

Although various studies have shown that corn ethanol reduces greenhouse gas (GHG) emissions by displacing fossil fuel use, many of these studies fail to include how land-use history affects the net carbon balance through changes in soil carbon content. We evaluated the effectiveness and economic value of corn and cellulosic ethanol production for reducing net GHG emissions when produced on lan...

Government procurement and allocation programs often use subsidies and set-asides favoring small businesses and other target groups to address fairness concerns.These concerns are in addition to standard objectives such as efficiency and revenue.We study the design of the optimal mechanism for a seller concerned with efficiency,subject to a constraint to favor a target group...