Fear of Fracking: The Problem with the Precautionary Principle

Share Button

An amazing thing has happened over the last five years.   Against all expectations, American emissions of carbon dioxide into the atmosphere, since peaking in 2007, have fallen by 12%, back to 1995 levels.  (As of 2012. US Energy Information Agency).   How can this be?   The United States did not ratify the Kyoto Protocol to cut emissions of greenhouse gases below 1997 levels by 2012, as Europe did.  

Was the achievement a side-effect of reduced economic activity?   It is true that the US economy peaked in late 2007, the same time as emissions.   But the US recession ended in June 2009 and GDP growth since then, though inadequate, has been substantially higher than Europe’s.  Yet US emissions continued to fall, while EU emissions began to rise again after 2009 (EU).  Something else is going on.  read more

Share Button

McKinnon’s Claim that RMB-$ Appreciation Would Not Reduce Trade Imbalances

Share Button

The International Economy magazine (Winter 2013) asks 16 authorities, “Can Changes in Exchange Rate Valuations Affect Trade Imbalances?”   It is referring to the claim in a recent book by Stanford economist Ron McKinnon that pressure on China to let the renminbi appreciate against the dollar is fundamentally misconceived because such a movement in the exchange rate would not reduce China’s trade surplus nor American’s trade deficit.  This is part of an old debate that pre-dates the rise of the China trade problem.  Ron has long claimed that exchange rates don’t determine trade balances because they are “instead” determined by national saving versus investment.   I thought Paul Krugman demolished the argument pretty effectively 25 years ago, with a textbook graph of internal balance versus external balance.   But evidently many still fall for the argument (including some of the experts in the TIE symposium).   So I try again: read more

Share Button

Should Bond Benchmarks Shift from Traditional to GDP-Weighted Indices?

Share Button

Some prominent institutional bond investors are shifting their focus away from traditional benchmark indices that weight countries’ debt issues by market capitalization, toward GDP-weighted indices.   PIMCO (Pacific Investment Management Company, LLC, the world’s largest fixed-income investment firm) and the Government Pension Fund of Norway (one of the world’s largest Sovereign Wealth Funds), have both recently made moves in this direction.  

There is a danger that some investors will lose sight of the purpose of a benchmark index.   The benchmark exists to represent the views of the median investor dollar.  For many investors, going with the benchmark is a good guideline – especially those who recognize themselves to be relatively unsophisticated and also those who think they are sophisticated but really aren’t.   This is the implication of the Efficient Markets Hypothesis (EMH), for example.   read more

Share Button