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Thursday, 14 April 2016

A new carbon tax in Portugal: A missed opportunity to achieve the triple dividend?

Volume 93, June 2016, Pages 110–118


Highlights

In a general-equilibrium model, we simulate the effects of a carbon tax in Portugal.
A carbon tax is needed for Portugal to meet its 2030 target in emissions reductions.
In the long run, it's possible to design a carbon tax to achieve the triple dividend.
The Portuguese parliament ultimately approved an unsatisfactory carbon-tax package.
Carbon-tax revenues must be recycled into lower taxes and promote energy efficiency.

Abstract

In 2014, the Portuguese government appointed a Commission for Environmental Tax Reform that formulated a carbon-tax proposal designed to achieve three dividends: to help Portugal meet the European Union's target for emissions reductions by 2030, to boost long-term employment and GDP above their pre-carbon-tax levels, and to strengthen public finances by lowering public indebtedness. A key feature of this proposal was a judicious set of mixed strategies to recycle all carbon-tax revenues back into the economy. In this note, we show how the carbon tax that the Portuguese Parliament eventually approved deviated from such guidelines, and ultimately failed to achieve the triple dividend. We argue that authorities need to quickly amend the existing legislation to avoid this misguided attempt turning into a missed opportunity to improve environmental, macroeconomic, and fiscal outcomes.

JEL classification

  • D58;
  • H63;
  • O44

Keywords

  • Carbon tax;
  • Triple dividend;
  • Economic growth;
  • Fiscal consolidation;
  • Dynamic general equilibrium;
  • Portugal
Corresponding author at: CAPP, Center for Administration and Public Policies, Universidade de Lisboa, Rua Almerindo Lessa, 1300-663 Lisboa, Portugal.