The Economic Consequences of R̂ = 1: Towards a Workable Behavioural Epidemiological Model of Pandemics
Joshua Gans ()
No 27632, NBER Working Papers from National Bureau of Economic Research, Inc
This paper reviews the literature on incorporating behavioural elements into epidemiological models of pandemics. While modelling behaviour by forward-looking rational agents can provide some insight into the time paths of pandemics, the non-stationary nature of Susceptible-Infected-Removed (SIR) models of viral spread makes characterisation of resulting equilibria difficult. Here I posit a shortcut that can be deployed to allow for a tractable equilibrium model of pandemics with intuitive comparative statics and also a clear prediction that effective reproduction numbers (that is, R) will tend towards 1 in equilibrium. This motivates taking R̂=1 as an equilibrium starting point for analyses of pandemics with behavioural agents. The implications of this for the analysis of widespread testing, tracing, isolation and mask-use is discussed.
JEL-codes: I12 I18 (search for similar items in EconPapers)
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Working Paper: The Economic Consequences of R=1: Towards a Workable Behavioural Epidemiological Model of Pandemics (2020)
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