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Guillaume Morel
''A note on pollution and infectious disease''
( 2020, Vol. 40 No.4 )
Within the present paper, we build a model from epidemiology and economics to study the impact of an infectious disease on the steady states and dynamic of an economy. More precisely, we embed a SIS model within a Ramsey growth model in a close framework with a tax where pollution comes from consumption. Firstly, we show that a consumption tax allocated to a depollution policy possesses an ambiguous effect on consumption and welfare, depending on the disease infectivity factor. Secondly, we point out that an increase in the spread of an infectious disease can't make a limit cycle (Hopf bifurcation) emerge near the endemic steady state.
Keywords: Hopf bifurcation, Pollution, Ramsey model, SIS model.
JEL: O4 - Economic Growth and Aggregate Productivity: General
I1 - Health: General
Manuscript Received : Apr 20 2020 Manuscript Accepted : Oct 12 2020

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