Good standing and cooperation

Indirect reciprocity is generally considered one of the leading mechanisms to explain how cooperation may emerge by natural selection. The basic intuition is that establishing a reputation of being a helpful individual increases the probability of being in turn helped. Two models have been proposed to describe how indirect reciprocity may work: the standing model (Sugden, 1986/2004) and the image-scoring model (Nowak and Sigmund, 1998a,b). Although there is evidence that the former model would perform better under a wide set of circumstances, it is often maintained that it requires individuals with an implausibly large capacity of processing recursive information. In this paper I argue that this is not actually the case. I then suggest that the information needed by the image-scoring model, under reasonable assumptions, may be sufficient for the standing model to work. Finally I emphasize that even if the hypothesis of indirect reciprocity is unable to give a fair account of the ecological bases of cooperation, it has inspired a deal of research precious to social sciences.Cooperation, Indirect reciprocity, Good standing, Image-Scoring.

Differences in IQ predict Italian North-South differences in (among other things) income: a comment

I provide a discourse on the article by Prof. Lynn (2010), which suggests that differences in intelligence explain per capita income levels across the Italian regions. To emphasize that his article is affected by flaws leading to false conclusions. This is clear as soon as some basic principles underpinning any rigorous scientific analysis are employed to discuss his findings.IQ, Income, Education, Italy.

The emergence of reciprocally beneficial cooperation

This paper offers a new and robust model of the emergence and persistence of cooperation. In the model, interactions are anonymous, the population is well-mixed, and the evolutionary process selects strategies according to material payoffs. The cooperation problem is modelled as a game similar to Prisoner’s Dilemma, but there is an outside option of nonparticipation and the payoff to mutual cooperation is stochastic; with positive probability, this payoff exceeds that from cheating against a cooperator. Under mild conditions, mutually beneficial cooperation occurs in equilibrium. This is possible because the non-participation option holds down the equilibrium frequency of cheating.Cooperation; voluntary participation; random payoffs.

On the economic relevance of the principle of gratuitousness

In this paper, the principle of gratuitousness and its relationships with other principles which motivate behaviour, such as those inspired by reciprocity, is analysed. The basic premise is that gratuitousness is a feature acquired by an action by virtue of the intentions that inspire the action itself. In this respect, the search for gratuitousness may require to discriminate among aestetically equivalent actions on the basis of the psychological disposition of the actor. The main claim of the paper is that in economically relevant situations gratuituousness is to be conceived as a modality of cooperation, emerging as the outcome of a team reasoning perspective and motivating such a perspective without any need for reciprocity. This claim is analysed with regard to blood donations and, more generally, with regard to the voluntary provision of goods

Nudging to donate organs: do what you like or like what we do?

An effective method to increase the number of potential cadaveric organ donors is to make people donors by default with the option to opt out. This non-coercive public policy tool to influence people’s choices is often justified on the basis of the as-judged-by-themselves principle: people are nudged into choosing what they themselves truly want. We review three often hypothesized reasons for why defaults work and argue that the as-judged-by-themselves principle may hold only in two of these cases. We specify further conditions for when the principle can hold in these cases and show that whether those conditions are met is often unclear. We recommend ways to expand nationwide surveys to identify the actual reasons for why defaults work and discuss mandated choice policy as a viable solution to many arising conundrums

Life is now! Time discounting and crime: evidence from the Italian regions (2002-2007)

This paper tests the relationship between time preferences and crime rates as posited by Davis (1988), whose theoretical analysis suggests that individuals’ attitude towards the future significantly affect their propensity to commit crime. Our empirical analysis is based on a panel of Italian regions for the period 2002-2007. Various proxies for time preferences are considered: the consumer credit share out of the total amount of loans to households, the share of obese individuals out of the total population, and the rate of marriages out of the total population. In line with the theoretical prediction, our empirical analysis confirms that where people are more impatient and discount the future more heavily, property and violent crimes are higher. Results are robust to a number of alternative specifications including covariates drawn from the literature on the determinants of crime.Time Preferences, Property Crime, Violent Crime, Italian Regions, Panel data.

"Are genetically modified foods bad for my health?". Individuals' valutation and the choice among different information sources

We investigate the role of information on consumers’ valuation for food products containing genetically modified organisms (GMOs), using data from a specifically designed survey. We provide three main results. First, we show that introducing mandatory labels to identify whether or not a food product contains GMOs, significantly reduces consumers’ valuation. Second, adding to the label additional information on GMOs significantly affects valuation. Third, no matter the sign of the information previously received, consumers are more willing to trust General Practitioners (GPs), the information source they prefer most. Overall, these results indicate that the crucial issue is not the presence of the label per se, but the availability of the necessary information to make good use of the label content to assess potential health risks deriving from GM foods. In particular, our findings suggest that this can be achieved by properly informing (and convincing) GPs and other health professionals that risks for human health are minimal.Genetically modified foods, information, health risks, General practitioners, labelling.

Healthy, Educated and Wealthy: Is the Welfare State Really Harmful for Growth?

In this paper, we study how public and private expenditures in health and education affect economic growth by their influence on peoples health, abilities, skills and knowledge. We consider a growth accounting framework in order to test whether welfare expenditures more than offset the efficiency losses caused by distortionary taxation, and whether the effects of public expenditure on economic growth differ from those of private expenditure. Our empirical analysis is based on a panel of 19 OECD countries observed between 1971 and 1998. The results are consistent with the hypothesis that the contribution of welfare expenditures more than compensates for the distortions caused by the tax system; and the estimated positive impact is stronger for health than for education. We also find some evidence that public expenditure influences GDP growth more than private expenditure.health, economic growth, education, public and private expenditure