Economics - Research Publications
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ItemShould We Worry about Government Debt? Thoughts on Australia's COVID-19 Response(Wiley, 2020-12-22)No. While the COVID-19 crisis has required a dramatic increase in debt-financed government spending, in the current conditions the benefits from this debt are unusually high and the costs unusually low. While conditions can change, the Australian Government can right now hedge against these risks by lengthening the maturity structure of government debt, even at the cost of a modest increase in its current servicing costs.
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ItemNon-Laplacian Beliefs in a Global Game with Noisy Signaling(Elsevier, 2018-06)In standard global games, individual behavior is optimal if it constitutes a best response to agnostic — Laplacian — beliefs about the aggregate behavior of other agents. This paper considers a standard binary action global game augmented with noisy signaling by an informed policy-maker and shows that in this game, equilibrium beliefs depart in quite stark ways from the Laplacian benchmark. In the limit as signals become arbitrarily precise, so that all fundamental uncertainty is removed (leaving only strategic uncertainty), the equilibrium beliefs of the marginal individual concerning the aggregate action collapse to a discrete Bernoulli distribution, giving probability mass only to the polar extreme outcomes. By contrast in the underlying standard global game the marginal individual believes the aggregate action has a continuous uniform distribution, giving equal likelihood to all possible outcomes.
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ItemCompetition, Markups, and the Gains from International Trade †(American Economic Association, 2015-10)We study the procompetitive gains from international trade in a quantitative model with endogenously variable markups. We find that trade can significantly reduce markup distortions if two conditions are satisfied: (i) there is extensive misallocation, and (ii) opening to trade exposes hitherto dominant producers to greater competitive pressure. We measure the extent to which these two conditions are satisfied in Taiwanese producer-level data. Versions of our model consistent with the Taiwanese data predict that opening up to trade strongly increases competition and reduces markup distortions by up to one-half, thus significantly reducing productivity losses due to misallocation.