Like many people, I am still somewhat puzzled and confused by Christian Broda and John Romalis:
China and cheap imports: Champions of equality: The U.S. presidential campaign has sometimes sounded like a contest to prove who despises trade the most.... This public debate has taken for granted that inequality... has risen as a result of globalisation. But has it really?.... How rich you are depends on two things: how much money you have and how much the goods you buy cost. If your income doubles but the prices of the goods you consume also double, then you are no better off. Unfortunately, the conventional wisdom on US inequality is based on official measures that only look at the first....
Inflation differentials between the rich and poor dramatically change our view of the evolution of inequality in America. Inflation of the richest 10 percent of American households has been 6 percentage points higher than that of the poorest 10 percent over the period 1994 – 2005..... Why has inflation for the poor been lower than that for the rich? In large part it is because of China and Wal-Mart!
Poor families in America spend a larger share of their income on goods whose prices are directly affected by trade... the higher your income, the more you spend on services, which are less subject to competition from abroad....
This trend can partly be explained by China. In U.S. stores, prices of consumer goods have fallen the most in sectors where Chinese presence has increased the most.... The expansion of superstores – like Wal-Mart and Target – has also played an important role in accounting for the inflation differentials between rich and poor. Superstores sell the same products as traditional shops at much lower prices....
What is really worrying is that, despite these facts, we have had a backlash against China and Wal-Mart in America.... We need to remind politicians and the public that the gains from trade are broadly shared. Every time the discussion over trade is diverted towards the problems facing specific producers, be they farmers in France or textile workers in the U.S., we miss the central point. Trading allows everyone, and especially the poor, to buy things that they could not otherwise afford...
Let's run through the Heckscher-Ohlin logic:
Set the prices of luxuries as numeraire.
