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15 Const. Pol. Econ. 3 (2004)

handle is hein.journals/constpe15 and id is 1 raw text is: Constitutional Political Economy, 15, 3-25, 2004.
©$ © 2004 Kluwer Academic Publishers. Printed in The Netherlands.
Fiscal Constitutions
HANS GERSBACH'2                                                       gersbach@uni-hd.de
Alfred-Weber-Institut, University of Heidelberg, Grabengasse 14, 69117 Heidelberg, Germany
Abstract. In this paper we examine how taxes, subsidies and the design of constitutional agendas should
be regulated in order to allow for an efficient allocation of public goods and a limitation of tax distortions.
We show that if public goods are socially desirable, the simple majority rule, combined with taxation
constrained to majority winners or a ban on subsidies, can achieve several desirable objectives. Equal
treatment regarding taxes and subsidies is undesirable. Super majority rules and equal treatment of all
citizens with respect to taxes and subsidies, however, are first-best provided public goods are socially
undesirable. Finally, we suggest that constitutions with amendments eliminate excessive taxation and
allow treatment rules to universally improve welfare.
JEL classification: D70, H41, K12.
Keywords: incomplete social contracts, constitutions, treatment rules, majority rules
1. Introduction
In this paper we develop constitutional principles for democracies which dictate the
treatment of individuals in the case of provision of public goods and financing
decisions. Democratic constitutions allow equal voting and agenda rights for all
citizens. At the same time they should ensure that socially valuable public goods are
provided. Socially undesirable public goods and tax/subsidy proposals for solely
redistributive purposes creating dead weight losses should not be adopted. This must
hold regardless of whether or not the individual who has the power to set the agenda
benefits from the public good. In order to meet these objectives, we examine the
design of constitutions involving decision rules and treatment rules with respect to
taxes and subsidies.
At the constitutional stage, a society decides how public goods provision and
financing should be governed in the legislative periods under a veil of ignorance.
Individuals do not know at the constitutional stage whether they will benefit from
the public good. Beneficiaries at the legislative stage are called project winners. Those
individuals who suffer from the public good are called project losers. In some cases,
the set of project losers may be empty. In other cases, public goods or more general
public projects may affect part of the society negatively. Examples of the latter
category are the downsizing of the defense industry after the end of the cold war,
labor market reforms that put pressure on wages for some workers and even the
construction of roads, which disturb nearby residents. A priori there is no reason to
assume that there are no project losers.
The constitutional principles in this paper must obey the liberal democracy's
fundamental principles of equal voting and agenda rights. Moreover, constitutional

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