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Modelli cge e simulazione di politiche pubbliche. Un'applicazione all'Italia con l'utilizzo di GAMS
Author/s: Giulia Colombo 
Year:  2007 Issue: 1-2 Language: Italian 
Pages:  34 Pg. 53-86 FullText PDF:  431 KB

Computable General Equilibrium (cge) models are a particular format of Applied General Equilibrium (age) models. They have mostly developed in recent years, especially thanks to the availability of special software packages for their solution. cge models can be seen as derived from input-output analysis, and they are used to simulate economic shocks and economic policy changes. This paper explores the hypothesis of a double dividend from environmental taxation, i.e. whether shifting the burden of taxation away from other types of distortionary taxes towards the environment can rise employment. Using a Computable General Equilibrium model of the Italian economy calibrated on a Social Accounting Matrix (sam) built on the input-output table of the year 1997, it simulates an equal-yield environmental tax reform, which increases taxation on the energy sector. This additional revenue is used at first to distribute lump-sum payments to the representative household, secondly to reduce personal income tax rates, and finally to reduce the social security contributions on labour. The last simulation has a more consistent effect in influencing the demand for labour by employers, and also labour supply, because it reduces the distortion existing on the labour market, thus creating additional employmen

Giulia Colombo, in "ECONOMIA PUBBLICA " 1-2/2007, pp. 53-86, DOI:


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