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2015/07: Empirical evidence on tax cooperation between sub-central administrations

The literature on horizontal tax interdependence pays limited attention to interactions in administrative policies, although they can play a large role in determining the amount of tax revenues collected. We investigate the incentives for sub-central tax authority cooperation in a decentralized context, with the aim of identifying the determinants of that cooperation. Our results are congruent with standard theory; in particular, the existence of reciprocity is essential for sharing tax information, but there is sluggishness in this process, which is partly the result of the short-sighted behaviour of tax authorities influenced by budget constraints. Hence, this is good news for the functioning of a decentralized tax administration, as in the medium-long run the gains to be made from sharing tax information are achieved.

2015/02: Optimality and distortionary lobbying: regulating tobacco consumption

We advance the literature on political budget cycles by testing separately for cycles in expenditures for elections in the legislative and the executive. Using municipal data, we can separately identify these cycles and account for general year effects. For the executive branch, we show that it is important whether the incumbent re-runs. To account for the potential endogeneity associated with this decision, we apply a unique instrumental variables approach based on age and pension eligibility rules. We find sizable and significant effects in expenditures before council elections and before joint elections when the incumbent re-runs.

Foro Fiscal IEB 2·0: «Modelos de administración fiscal»

2014/33 : Is income redistribution a form of insurance, a public good or both?

This paper is an empirical study of redistributive preferences. Our interest is what motivates net contributors to support redistributive policies. Using instrumental variable estimation and exploiting a particularity of the Spanish labour market we estimate how workers’ declared preferences for unemployment benefits spending respond to changes in the local unemployment rate. We then decompose this response into the part explained by risk aversion, and thus demand for insurance, and the part explained by the public goods nature of redistribution. Our results suggest that the declared preferences of workers for unemployment benefits spending are driven by demand for insurance rather than any public goods component. We show how these results suggest that preferences for redistribution in the form of unemployment benefits are driven by insurance considerations rather than by any public goods consideration.

2014/09 : Itemised deductions: a device to reduce tax evasion

With direct incentives and sanctions being the most common instruments to fight tax evasion, the theoretical literature has tended to overlook indirect schemes, such as itemised deductions, in which one agent’s behaviour a effects the likelihood that others will declare their revenue. Itemised deductions provide an incentive for consumers to declare their purchases. This induces a partial shift in the demand from the black market to the legal one, for consumers need a transaction receipt to enjoy the tax deduction. I show that it is possible to increase tax proceeds by choosing a suitable level of itemised deduction, and this, for any level of taxation. Indeed, the cost for the tax authority on the consumers’ side is more than compensated for by the extra proceeds generated on the sellers’ side.

2014/08 : A fiscal revolution? Progressivity in the Spanish tax system, 1960-1990

The main objective of this paper is to calculate the distribution of the tax burden across income levels in Spain between 1960 and 1990. The chosen period covers the final years of Franco’s dictatorship and the first ones of the present parliamentary regime, and is thus meant to explore how political change was reflected on taxation. Does transition entail a fiscal revolution? Here is one case study developed and compared to other national experiences. Effective tax reform seems to have been politically blocked during the dictatorship, with public budgets growing fundamentally on the grounds of social security contributions. Democracy brought about a comprehensive transformation starting in 1977, which aimed at improving fairness (progressivity) and increasing revenue (to fund the development of the Welfare State). In this work I analyse whether the reforms entailed effective changes in the distribution of the tax burden, by imputing tax collection to taxpayers, based on income and consumption micro-data from Household Budget Surveys. The results show a persistent (albeit decreasing) regressivity in the tax system, which caused an increasingly negative redistribution of income. Pre-Tax incomes grew unequal during the period and net incomes even more so as a result: the tax reform did not fulfill its equalizing promises. The joint effect of the fiscal system, however, seems to have been slightly positive due to progressive social spending.