The Smoot-Hawley tariff of 1930, which raised U.S. duties on hundreds of imported goods to record levels, is America's most infamous trade law. It is often associated with--and sometimes blamed for--the onset of the Great Depression, the collapse of world trade, and the global spread of...

In 1960, South Korea's exports were about 1 percent of GDP, and the country's ability to import depended almost entirely on US aid. After changing its foreign exchange and trade policies in the mid-1960s, Korea saw a surge in exports to more than 10 percent of GDP by the end of the decade. What...