Abstract. This paper analyzes the impact of positional preferences, exhibiting conspicuous consumption and conspicuous wealth, on optimal consumption-and income taxes, for an endogenous growth model with public capital. Positional preferences raise the endogenous growth rate if the elasticity of intertemporal substitution is larger than one. Even if labor supply is exogenous, the consumption externalities introduce distortions so long as preferences are wealth-dependent, and with or without the presence of conspicuous wealth.Consequently, optimal consumption-and income taxes differ from zero. Numerical simulations present the effects of fiscal policy on the balanced growth path and transitional dynamics.
Keywords and Phrases:Conspicuous consumption, conspicuous wealth, endogenous growth, public capital, optimal consumption tax JEL Classification Numbers: D62, D91, E21, H21, O41 * Corresponding author. Email address: ronald.wendner@uni-graz.at 1 We are indebted to Stella Zilian for valuable research assistance. We also thank Evangelos Dioikitopoulos for insightful debates on a previous version of this paper. We retain sole responsibility for any remaining errors.2