First, we examine whether the level of globalization of the country is correlated with the timing of international travel restrictions relative to the date of a country’s first local confirmed case of coronavirus. With a simple correlation analysis, we find that the Pearson’s correlation between the first policy implementation-first case gap and globalization index is significantly positive ρ = 0.35 (p < 0.001; 95%CI = [0.210, 0.475]; n = 170),Footnote 12 demonstrating that more globalized countries exhibited a delay in imposing travel restrictions compared with less globalized countries (Fig. 3a), relative to their first local confirmed case of COVID-19. Figure 3a also indicates that countries that reacted before the first local COVID-19 case tended to adopt screening on arrivals or quarantine rules as the first precautionary measures. We find that more globalized countries tend to have a higher number of…

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