We examine the Cournot oligopoly model in the context of social and individual learning. In both models of learning, firms update their decisions about how much to produce via variants of the genetic algorithm updating procedure. Arifovic (1994) found that both models of social and individual learning converged to the Walrasian, competitive equilibrium. Vriend (2000) reports that the model of s...

The models Feldstein and Rothschild, on the hand, and Jorgenson on the other adopted in 1974 to highlight the replacement ratio are identical. Yet, the authors reached opposite conclusions and that view prevailed, which is weaker in terms of theoretical and empirical foundations. This paper argues that both puzzles may be resolved by reference to the differences in the methodological preconcept...

We describe the isolation by reversed-phase h.p.l.c. of a number of products of the degradation of insulin by insulin proteinase and their direct analysis by fast atom bombardment mass spectrometry (f.a.b.-m.s.). Various semisynthetically labelled insulins were used, including [[2H2]GlyA1]insulin and [18O]LysB29]insulin. The results obtained confirm and extend the results obtained by non-mass-s...

Most professional economists believe that economists in general are more selfish than other people and that this increased selfishness is due to economics education. This article offers empirical evidence against this widely held belief. Using a unique data set about giving behavior in connection with two social funds at the University of Zurich, it is shown that economics education does not ma...

In this paper we describe the application of a special form of electron photodetachment spectroscopy, zero electron kinetic energy (ZEKE) spectroscopy, to the study of cold metal cluster anions. From this study we have obtained vibrational and thus structural information of several neutral and charged clusters, e.g. Au~ -/°, Ag3/°, Sn~ m and A13/0 In addition, in separate measurements of the re...

Volunteer work is an increasingly large, yet ill-understood sector of the economy. We show that monetary rewards undermine the intrinsic motivation of volunteers. A unique data set from Switzerland allows us to assess the effects of financial rewards on the effort put into volunteer work. There is a fairly standard pattern regarding the volunteers reaction e.g. to more labor market work hours. ...

The paper discusses rationality at two levels. According to a common opinion the key to rationality at the group level is a willingness to contribute unselfishly at the individual level. I claim that even when rationality at the individual level is denied, it is often achieved by social punishment. The difficulty to organize a social project is exaggerated. The relative ease of implementing ind...

Tanulmányunk hiánypótló abban a tekintetben, hogy elsőként vizsgáltuk magyar lakosság evési motivációit TEMS kérdőív segítségével. Célkitűzésünk volt fogyasztók motivációinak részletes elemzése. Ennek érdekében egy 1000 fős országos kérdőíves felmérést indítottunk, amely nemre, korra, településtípusra, és régióra tekintettel reprezentatív. A felmérés során 8 jól elkülöníthető faktort kaptunk, a...

Elicitors could be used as the enhancer of plant secondary-metabolite synthesis and could play an important role in biosynthetic pathways of important medicinal compounds. The present study investigated the effect of abiotic elicitor (fungal extract of Fusarium graminearum) and two abiotic elicitors (methyl jasmonate and salicylic acid) at different concentrations in 18- and 30-day-old cultures...