In January the International Monetary Fund released a paper arguing that China will reach the Lewis turning point between 2020 and 2025.

WSJ: Diana Choyleva: China Is Too Large for Its Own Good

And the squeeze on corporate profits engendered by the Lewis turning point will make it harder for companies to invest in boosting the productivity of today's low-skilled workers.

WSJ: Diana Choyleva: China Is Too Large for Its Own Good

Making a minor request and being denied can be a blow, says Lewis, but for a lot of people, it can be an important turning point in their career.

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