The economic implications of COVID-19 A webinar series from the Princeton Bendheim Center for Finance Daron Acemoglu on the benefits of targeted policies Daron Acemoglu is a Professor of Economics at MIT This presentation title is A Multi-Risk SIR Model with Optimally Targeted Lockdown. Daron studied this paper with other Economist in April 2020. In this study, discuss about what policy is good policy in SIR content. One of the key trade-off is between economic and public health outcomes. The first reason as to why Acemoglu believe SIR Model is because varieties of heterogeneity which is include age group and mortality rate relation in COVID-19. From my opinion, Acemoglu must have mention on virus carrier group which is mainly 0 – 19 age group. In this context, mortality rate is not only more important issue but also carrier of virus group is significant on spread of propagation. I think, if we set up an optimal control problem for this environment—allowing targeting by