A new paper by Chang-Tai Hsieh and Ralph Ossa (NBER) provide some numbers.
They find that the average real income of the rest of the world INCREASED by a cumulative 0.48% from 1992-2007 due to China's productivity growth? This represents 2.2% of total income gains to the world.
What does this really mean?
Where is the bad news?
A Global View of Productivity Growth in China
University of Chicago - Booth School of Business
affiliation not provided to SSRN
NBER Working Paper No. w16778
We revisit a classic question in international economics: how does a country's productivity growth affect worldwide real incomes through international trade? We first identify the channels through which productivity shocks transmit in a model featuring inter-industry trade as in Ricardo (1817), intra-industry trade as in Krugman (1980), and firm heterogeneity as in Melitz (2003). We then estimate China's productivity growth at the industry level and use our model to quantify what would have happened to real incomes throughout the world if nothing but China's productivity had changed. We find that average real income in the rest of the world increased by a cumulative 0.48% from 1992-2007 due to China's productivity growth. This represents 2.2% of the total income gains to the world.