Du Référent,Perdu Et Retrouvé Réponse à Mario Jori

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An empirical test of neutrality and the crowding-out hypothesis

This paper tests Warr's neutrality hypothesis that the voluntary provision of a public good is independent of the distribution of income. Specifically, I test the null hypothesis of neutrality against the alternative that total contributions to a public good will be larger the less equally income is distributed. To test this hypothesis, a new data set is constructed by merging data on total voluntary contributions to individual public radio stations with 1990 Census data on the income distribution in each station's listening area. I find that voluntary contributions increase as income inequality rises.     

Free riders or easy riders?: An examination of the voluntary provision of public radio

This paper tests the widely accepted hypothesis that when a pure public good is voluntarily provided incentives to free ride increase with the number of individuals consuming the good. Specifically, I use unique data on the number of listeners and contributors to public radio to test two hypotheses. First I test whether the proportion of contributors falls as group size increases and second I test whether contributions per contributor falls as group size increases. I find that increases in group size result in significantly more free riding. However, I also find that group size has no effect on contributions per contributor.