Recent theoretical work has shown that the incidence of ad valorem and specific taxes may differ and each may be over or under-shifted onto consumers in the presence of imperfect competition. These results are used to derive a method of estimating market power and conduct. An application is made to the European cigarette industry. Previous empirical comparison of the price effects of ad valorem and specific taxes is limited. For a group of countries with broadly similar cigarette industries, there is evidence of undershifting of both taxes, with the specific tax having a significantly greater impact on price. The extremes of both perfect competition and monopoly can be rejected. Behaviour is no less competitive than the equivalent of Cournot. JEL Classification: H22, L13, L66

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Commodity tax structure affects the firm's choice between formality and informality. An increase in the specific tax rate, relative to an equivalent increase in ad valorem taxation, makes informality attractive to more firms. Formality becomes attractive at lower levels of profits under ad valorem taxation. For both the maximization of welfare subject to a revenue constraint and the unconstrained maximization of revenue, the optimal rate of specific taxation is zero.

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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. www.econstor.eu Terms of use: Documents in EconStor may COMMODITY TAXES, WAGE DETERMINATION AND PROFITS Sophia Delipalla and Peter Sanfey September 1998 AbstractWe examine the effects of two different types of commodity taxation, specific and ad valorem, on wages and profits. We analyze two models of wage determination, one with efficiency wage setting and one with bargaining between a union and a firm. In the former, a (locally) revenue-neutral shift from specific to ad valorem taxation leads to an increase in both employment and wages, and a reduction in profitability. In the bargaining case however, the effect on wages and profits may be reversed: predominantly ad valorem taxation raises employment but lowers wages, and under certain circumstances, the net effect can lead to an increase in profits.JEL Classification: H2, H32, J41, J5