(Bloomberg News) The Federal Reserve's quantitative easing policy failed to meet the "ultimate objective" of boosting employment and economic growth, said Mohamed El-Erian, chief executive officer at Pacific Investment Management Co.

While the bond-purchase program pushed investors into higher-yielding assets such as stocks, the "transmission mechanism" to lower unemployment by driving more money into the economy didn't work, El-Erian of Pimco, the world's biggest manager of bond funds, said in a radio interview on "Bloomberg Surveillance" with Tom Keene.

"If success is defined in terms of the ultimate objective, which is pushing up valuation in order for people to spend more on goods and services and therefore get the economy to grow and unemployment to come down rapidly, then the answer is no," El- Erian said from Newport Beach, California.

The U.S. central bank began the second round of asset purchases, known as QE2, in November after buying $1.7 trillion in securities through last year, increasing the amount of money in circulation to prevent deflation. The central bank's $600 billion in purchases of Treasuries are due to end this month.

"Simply throwing more money at the economy doesn't seem to be enough," El-Erian said. "Part of the unintended consequences is not only did we get good inflation, which is higher equity prices, higher asset prices, but we got bad inflation, which is higher commodity prices."

The Standard & Poor's 500 Index has climbed 9 percent since QE2 was announced. At the same time, the S&P GSCI index of 24 commodities has risen 16 percent, while oil futures have climbed 14 percent and gold has increased 9.6 percent.

Treasury yields rose after tumbling yesterday the most in more than two months as reports showed company hiring and manufacturing growth slowed. The 10-year note yield fell below 3 percent for the first time this year.

"If you're just a U.S. investor, be careful because Treasury bonds are at yields that probably can't stay this low for long, and equities have been pushed up by QE2," El-Erian said. "The key issue for us is, remember markets are global and opportunities are global."

Pimco, a unit of the Munich-based insurer Allianz SE, managed $1.28 trillion of assets as of March 31.