Juan Pablo Cuesta, Swarnali Ahmed Hannan, 12 August 2021

Covid-19 has had a staggering adverse impact on lives and livelihoods, disproportionately affecting the poor and the vulnerable. To shed light on possible scarring effects, this column studies the effect of five past pandemics on output, unemployment, poverty, and inequality in the near and medium term. The findings reveal significant negative effects, although countries that provided relatively large fiscal support experienced limited output declines. Historically, increases in unemployment, poverty, and inequality were lower for countries with greater fiscal support and relatively stronger initial conditions, which included higher formality, family benefits, and health spending. 

Matthew Jackson, Brian Rogers, Yves Zenou, 06 March 2015

Understanding our increasingly interconnected world requires tools from the rapidly growing field of network science. This column discusses guiding principles that are emerging from that science and helping to understand human behaviour – ranging from disease propagation and financial contagion to criminal behaviour.

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