A Surprising Rum Tax

When the U.S. Congress decided to give Puerto Rico some alcohol taxes from its rum exports, the results were unexpected.

Puerto Rico’s Solar Power Alternative

This satellite picture shows how San Juan, Puerto Rico used to sparkle at night: But since Hurricane Maria, no more: Currently, 10% of the island has power. So there is little running water and few flushing toilets. Similarly, air conditioning…

When to Worry About Sovereign Debt

Comparing debt to GDP is like looking at a mortgage loan and household net worth. It can help us decide when a sovereign debt became too large.