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Globalization101.org: a resource to learn about the trade-offs and dilemmas of globalization Globalization refers to "the compression of the world and the intensification of consciousness of the world as a whole" (R. Robertson, Globalization, 1992: 8)

Entrepreuneur moving business out of CA to China over gov regulation

I love that Harvard Economics professor Gregory Mankiw blogs, but I hate that has de-activated the comments on his blog. Yesterday he posted a question from his own Harvard introductory economics class.  Since he doesn't allow comments though, I cannot tell if I'm solving it correctly. So I will re-publish it here and ask my readers to solve the problem in the comment section. IB and AP students who have studied microeconomic should be able to put some of their basic algebra skills to work to solve this one.

Molly, could you explain how you determined that at a world price of $6, the firm's profit maximizing Q would become 5 units? Why did we equalize P=MC to find the firm's output at a price of 6? I see why the firm becomes an exporter at a world price of $6 if they produce 5 units (since domestic Qs exceeds domestic Qd) but just not why we determine the firm's output by P=MC. Thanks!

I guess I am assuming that once there is free trade the monopolist has to act like a perfect competitor and at least in the world market is a price taker. It's a bit like the monopsonist who has to become a wage taker once there is an effective minimum wage. Consequently he employs more workers since his MFC equals the wage.

I find it amazing (and troubling) that Latin America and Africa have made no appreciable gains in 40 years. They are rich in human capital and other productive resources....as a side note, I noticed in one of the comments on the blog you found this graphic there was some conversation about the CPI and that it was reconfigured in the 1990's(?) and that with the new method inflation is underestimated, therefore RGDP must be overstated...I have to admit ignorance on this issue...Are you familiar with it? Any commments as to the validity of the underestimation of inflation? Thanks!!

Gene, I'm not sure we should be so troubled by the flat trend lines for Latin America and Africa. Keep in mind, this is not GDP, this is share of world's GDP. Unlike total output, which is NOT a zero sum concept, share of total output IS a zero-sum concept. A gain made by one part of the world is only possible by a loss made in another part of the world. The decline of the EU 15's share of world GDP does not mean that the EU 15 experienced a decline in output. In fact, the EU 15 have grown steadily over the last 40 years. Their downward sloping curve indicates that they have grown more slowly than the rest of the world, that's all. So the flat lines for Africa and Latin America in fact indicate that those two regions have grown more rapidly than Europe. Although it doesn't look like it on this graph, the "poor south" is actually catching up with the "rich north" as average growth in Europe lags behind that in the south. It's a bit misleading to interpret the graph in this way, but the gains in Asia have in a way come at the expense of gains in Europe, but only in that they now have a larger share of a MUCH larger pie! All regions have grown, and Latin America and Africa have grown AS quickly as the US, and MORE quickly than Europe. Good news!

Thanks for the reply and the analysis...I did not occur to me to think of it in those terms...I am better off for asking the question!!! :)

I use this clip to expand on the concept of MPC/MPS and Disposable Income before developing the Aggregate Model.