Readers: Over the next week or so we'll be re-posting some of our favorite posts from IPE@UNC from this year, interspersed with new content. Partially because blogging is so ephemeral, and some of our posts are worth revisiting. Partially because it's winter break and we've got eating, sleeping, and catching up on research to do. Nominations welcome.
From March 20, "Department of 'Brad DeLong, Please Elaborate''':
Brad DeLong writes:
Needless to say, Paul Krugman is right: if China saves less and spends more, its capital exports drop. As its capital exports drop, its savers' demand for dollars in exchange for renminbi fall--and the value of the dollar falls relative to the renminbi. A revaluation of the renminbi is not an alternative to an increase in Chinese spending but rather part of the process of making that increase in spending come about.
What I continue to struggle to understand is, if China spends more, won't this shift China's demand for dollars from capital account transactions (buying fewer Treasuries) to current account transactions (buying more Boeings)? In fact, isn't this exactly what Krugman and DeLong hope will happen? If so, then Chinese savers' demand for the dollar falls, but Chinese spenders' demand for the dollar rises. Why would the renminbi appreciate?
So is the argument that China's marginal propensity to buy dollar-invoiced goods is lower than its marginal propensity to buy dollar-denominated assets so that increasing spending and reducing saving causes China to spend less on all dollar-denominated things (Treasuries and Boeings)? And, although it spends less, it could still purchase more because the real exchange rate has strengthened. So, Boeing sells more jets to China. If this is the argument, is there any evidence that it is correct?
I know I can't expect Krugman to drop by to clarify this for me. But DeLong swings by on occasion to keep Will in line; perhaps he could take a moment to fill in the pieces for me. No snark at all.
IPE @ UNC
IPE@UNC is a group blog maintained by faculty and graduate students in the Department of Political Science at the University of North Carolina at Chapel Hill. The opinions expressed on these pages are our own, and have nothing to do with UNC.
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1 comments:
Without the appreciation of the renminbi there is no desire to buy more Boeings. The desire to buy more Boeings is not an alternative to but a consequences of renminbi appreciation. Once the renminbi has appreciated enough that the desire to buy more Boeings offsets the desire to buy fewer assets then indeed the renminbi stops appreciating. But it needs first to appreciate before you can get there.
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