1,000,000 economists can be wrong: The free trade fallacies

The obvious answer is that you don't. Instead, you sell the wine press and buy a spinning jenny with the proceeds. But because of the introduction of trade, the price of wine in England would have fallen, so that the sale price of the wine press will also fall, while the price of spinning jennies will have risen, given the new export market to Portugal. Economists have modified Ricardo's model to introduce curves where Ricardo had straight lines, so that total specialisation is no longer required and there would still be some wine production in England under the "new" model of Free Trade. Some capital is necessarily destroyed by the opening up of trade and it applies in reverse in Portugal as well.

Since capital is destroyed when trade is liberalised, the watertight argument that trade necessarily improves material welfare springs a leak. If economics were a real science, this real-world complication to Ricardo's argument would be considered, but it has never been seriously addressed.

These and many other failings that explain why, when Dani Rodrik took a careful look at the empirical record of trade liberalisation, he found that it had frequently reduced material welfare rather than increasing it. Writing back in 2001, he summarised his findings for Foreign Policy magazine with the statement that:

"Advocates of global economic integration hold out utopian visions of the prosperity that developing countries will reap if they open their borders to commerce and capital. This hollow promise diverts poor nations' attention and resources from the key domestic innovations needed to spur economic growth."

As an economist who has specialised in dissecting the empirical claims for the role of free trade, Rodrik has the might of the majority of the profession against him. As noted above, that's a good rule of thumb that Rodrik is right.