Thèse soutenue

FR
Auteur / Autrice : Florian Chatagny
Direction : Yvon RocaboyNils Soguel
Type : Thèse de doctorat
Discipline(s) : Sciences économiques
Date : Soutenance en 2011
Etablissement(s) : Rennes 1 en cotutelle avec UNIL - Université de Lausanne

Résumé

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The current thesis is an analysis of the tax revenue budgeting process. More precisely, it proposes an economic analysis, both theoretically and empirically, of the tax revenue budgeting errors observed in Swiss cantons. On a theoretical point of view, it applies a game theoretic model of strategic information transmission to show that an asymmetry of information in the favour of the finance minister within the government cabinet may give him the opportunity to manipulate budgeted amount of tax revenue for political purpose. On an empirical point of view, the econometric analyse of a database on the 26 Swiss cantons over the 1980-2007 period provides us with some evidence that the political leaning of the government cabinet member affect tax revenue budgeting errors. Regression results suggest that the average ideology of the spending minister has a direct positive effect on the tax revenue budgeting errors. Furthermore, it shows that the ideology of the finance minister does affect budgeting errors only if an ideological gap with the spending ministers exists. Finally, an empirical analyse of fiscal balances in Swiss cantons shows that systematically underestimating tax revenue tends to reduce public deficits. It even shows that this effect is asymmetric in the sense that an overestimation of tax revenue increases deficits more than an underestimation of the same amplitude would decrease them. These results suggest that underestimating tax revenue may be a desirable and efficient strategy in order to reduce excessive deficits.