As the ongoing recession exhausts the traditional instruments of monetary policy, the U.S. Federal Reserve is firing up its money printing machines as it prepares for new rounds of quantitative easing (QE). And, with investors seeking higher returns, more QE will drive hot money into high-yield emerging market economies, which could inflate dangerous asset bubbles. Dan Steinbock, Research Director of International Business at the India, China and America Institute, and visiting fellow at the Shanghai Institutes for International Studies (China), talked about the potential damages of QE in an article to Beijing Review. Edited excerpts follow:

The U.S. Federal Reserve and the Obama administration remain rhetorically wedded to maintaining a "strong dollar." But it is the dollar's weakness that has boosted U.S. corporate earnings since the crisis erupted, propelling the Dow Jones Industrial Average above 11,000 for the first time since May. Since early 2002, the dollar has fallen by one third against major currencies, and recently this decline has intensified.

Since the end of August, when U.S. Federal Reserve Chairman Ben Bernanke argued for another round of QE, the dollar has plunged more than 7 percent against a basket of half a dozen major currencies.

The full impact of America's QE2 will not be domestic, because the net effect will be a weaker dollar as speculators bet on its decline.

Meanwhile, developing countries are moving in the opposite direction. In October, the People's Bank of China, China's central bank, responding to the twin threats of inflation and asset bubbles, raised its one-year deposit and lending rates by 25 basis points—the first increases since 2007. Right before the Fed acted, the Reserve Bank of India raised its benchmark short-term interest rate by 25 basis points to fight inflation, and China's central bank now indicates that it might raise interest rates further. After the Fed's move, Brazil is also preparing to retaliate. "It's no use throwing dollars out of a helicopter," as Brazilian Minister of Finance Guido Mantega put it. Soon afterward, Germany's finance minister called U.S. policy "clueless," while his South African counterpart thought that the Fed's move undermined the G20 leaders' "spirit of multilateral cooperation."

Today, however, global economic integration and interdependence are much deeper than in the 1930's. As Chen Deming, China's Minister of Commerce, recently complained, "The U.S. issuance of dollars is out of control and international commodity prices are continuing to rise." As a result, "China is being attacked by imported inflation."

The impact of the Fed's policy and hot money has been dramatic. In the third quarter of this year, China's foreign exchange reserves increased by $194 billion, which far exceeded the country's $66 billion trade surplus and $23 billion in inflows of foreign direct investment. At least part of the difference can be attributed to hot money.

Most importantly, a disruptive decline of the U.S. dollar, or a disruptive appreciation of the Chinese yuan, could hinder not only China's growth, but also global recovery. In the 1990s, emerging and developing economies were still dependent on G7 growth. In the past decade, these countries have, as the Organization for Economic Cooperation and Development research has shown, become dependent on Chinese growth. Any decline in China's growth would thus significantly undermine poverty reduction in the emerging world.

In a global economy, the decisions of the leading countries' central banks have global implications. And, in a world where the G7 no longer drives global growth, printing money is like playing with fire.