Standard-Nutzungsbedingungen:Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Zwecken und zum Privatgebrauch gespeichert und kopiert werden.Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich machen, vertreiben oder anderweitig nutzen.Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, gelten abweichend von diesen Nutzungsbedingungen die in der dort genannten Lizenz gewährten Nutzungsrechte. The Iranian economy is highly vulnerable to oil price fluctuations. This paper analyzes the dynamic relationship between oil price shocks and major macroeconomic variables in Iran by applying a VAR approach. The study points out the asymmetric effects of oil price shocks; for instance, positive as well as negative oil price shocks significantly increase inflation. We find a strong positive relationship between positive oil price changes and industrial output growth. Unexpectedly, we can only identify a marginal impact of oil price fluctuations on real government expenditures. Furthermore, we observe the "Dutch Disease" syndrome through significant real effective exchange rate appreciation. Terms of use: Documents in

Standard-Nutzungsbedingungen:Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Zwecken und zum Privatgebrauch gespeichert und kopiert werden.Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich machen, vertreiben oder anderweitig nutzen.Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, gelten abweichend von diesen Nutzungsbedingungen die in der dort genannten Lizenz gewährten Nutzungsrechte. The majority of theoretical and empirical studies on the relationship between decentralization and corruption argues that the devolution of power might be a feasible instrument to keep corruption at bay. We argue that this result crucially depends on the effectiveness of monitoring bureaucrat's behavior. The benefits of interjurisdictional competition only occur if there is a supervisory body such as a free press, which is often lacking in less-developed countries. Using cross-country data, we analyze the relationship between decentralization and corruption taking different degrees of the freedom of the press into account. Our main finding is that decentralization counteracts corruption in countries with high degrees of press freedom, whereas countries without effective monitoring suffer from decentralization. Our policy implication is that a free press is a necessary pre-condition for successful decentralization programs. Terms of use: Documents inJEL Code: D73, H77, O23.

This paper studies the impact of decentralization on the shadow economy. We argue that decentralization may decrease the size of the shadow economy mainly through two transmission channels: (1) Decentralization enhancing public sector efficiency (efficiency effect), and (2) decentralization reducing the distance between bureaucrats and economic agents, which increases the probability of detection of shadow economic activities (deterrence effect). Using various measures of fiscal, political and government employment decentralization in a cross-section of countries, we find the deterrence effect to be of more importance. The deterrence effect is stronger, the lower the degree of institutional quality. Remarkably, we find no robust evidence of the efficiency effect.

We study how natural-resource rents affect the risk of internal conflict within countries and how the federal structure of countries influences this relationship. Natural-resource abundance may induce excessive rent-seeking and thus increase the risk of internal conflict. Fiscal and political decentralization as an institutional arrangement for rent-sharing and political codetermination of regions within a country may limit the destructive effect of the naturalresource rents on internal stability. Using cross-country and panel data covering the period 1984-2004 from more than 90 countries, we find evidence that natural-resource rents indeed increase the risk of internal conflict, but this relationship is significantly mitigated by decentralization.JEL-Code: H770, P480, Q340, Q380.