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From production to consumption: An inter-sectoral analysis of air emissions external costs in Italy
Autori/Curatori:  Andrea Molocchi 
Anno di pubblicazione:  2020 Fascicolo: 2  Lingua: Inglese 
Numero pagine:  26 P. 155-180 Dimensione file:  590 KB
DOI:  10.3280/EFE2020-002007
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Aim of the paper is to attempt an estimate of the air emissions external costs related to activity sectors in Italy with both a production and demand perspective and to explore possible appli-cations of the approach in public policies. This is done by adopting an environmentally ex-tended national input-output modelling (about 20 substances are covered, among which CO2 emissions) and law recognized methods for calculating air emissions external costs in Italy. The external costs resulting from this exercise on 2015 emissions sum up to € 77.4 billion, € 51.7 billion of which are related to all economy sectors of activity, while € 25.7 billion are due to household activities. Total external costs of air emissions embodied in final demand sum up to 53.0 billion euro in 2015 if total activated production is considered (including external costs embodied in imports), while they decrease to 36.1 billion euro if only domestic activated pro-duction is considered (assuming zero external costs embodied in imports). The specific exter-nal costs embodied in final demand, calculated for each sector through input-output analysis, are then compared with the specific external costs of direct emissions of the same sector pro-duction, highlighting the additional information provided by input-output analysis: many branches with relatively low direct external costs show much higher external costs when the supply chain branches are included in the assessment. A final chapter discusses the main poli-cy application areas of the suggested approach, focusing particularly on national environmental fiscal reform, company level environmental management, public investments planning and sustainable finance.

Keywords: Polluter pays principle, external costs, environmental taxes, air emissions, inputoutput analysis, supply chain.
Jel Code: H23, Q48, Q51

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Andrea Molocchi, in "ECONOMICS AND POLICY OF ENERGY AND THE ENVIRONMENT" 2/2020, pp. 155-180, DOI:10.3280/EFE2020-002007


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