We study historical tax revenue downturn episodes—where tax revenue-to-GDP ratios decline sharply—and explore the link between tax revenues and imports. We document that downturn episodes of at least 1 percentage point of GDP in one year are common. The tax types that account for these episodes are different in advanced, emerging and developing, and oil producing c...

We study historical tax revenue downturn episodes—where tax revenue-to-GDP ratios decline sharply—and explore the link between tax revenues and imports. We document that downturn episodes of at least 1 percentage point of GDP in one year are common. The tax types that account for these episodes are different in advanced, emerging and developing, and oil producing c...

We study historical tax revenue downturn episodes—where tax revenue-to-GDP ratios decline sharply—and explore the link between tax revenues and imports. We document that downturn episodes of at least 1 percentage point of GDP in one year are common. The tax types that account for these episodes are different in advanced, emerging and developing, and oil producing c...