In this paper we study experimentally how public statements about future social behaviour, used in oaths and code of conducts, affect in-dividual decisions. Our results indicate that public statements of good intentions can help to overcome social dilemmas. We distinguish be-tween voluntary

The paper reports the results of an empirical study of a sample of Portuguese producers of equipment goods. The information collected for this study was based on case studies of nineteen firms. The unit of analysis was the firm. The information was obtained during personal interviews with the owner

We examined agonistic behaviour in seven species of hatchling and juvenile crocodilians held in small groups (N = 4) under similar laboratory conditions. Agonistic interactions occurred in all seven species, typically involved two individuals, were short in duration (5–15 seconds), and occurred

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range of the measures, we hope to observe which features yield good retrieval behaviour in a variety of retrieval environments; and third, by describing our results so far, to gather feedback on the issues we have uncovered. We demonstrate that it is surprisingly difficult to identify which techniques

This paper studies the excessive volatility of Spanish aggregate non-durables consumption with relation to aggregate income. In this paper we stress the importance of non-durables imports over the variability of total non-durables consumption and we propose a theoretical model that formalizes the relation between domestic and imported consumption. The main finding of the paper is that a model of intertemporal optimization where there is no credit constrain or government can produce so high volatilities of consumption as the ones observed.

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a good coverage of the geographic sampling area. This paper investigates the behaviour of the method using numerical simulations and an artificial pseudo-ecological data set of known properties. 2002 Elsevier Science B.V. All rights reserved.

and other research outputs Improving children’s behaviour and attendance through the use of parenting programmes: an examination of good practice Other How to cite: Hallam, Susan; Rogers, Lynne and Shaw, Jacqueline (2004). Improving children’s behaviour and attendance through the use of parenting

The general purpose optimization method known as Differential Evolution (DE) has a number of parameters that determine its behaviour and efficacy in optimizing a given problem. This paper gives a list of good choices of parameters for various optimization scenarios which should help