In contrast to the massive deficit in trade in goods, the United States is chalking up a rare surplus in services trade with China that could balloon to 67 billion dollars in eight years, says a report commissioned by American companies.

The United States enjoyed a 2.6 billion dollars surplus in services trade with China in 2005, compared to its colossal goods deficit of 201.6 billion dollars.

But US service sector exports to China are growing faster than to any other country and "by 2015, the service sector current account balance with China could be worth 67 billion dollars," said a study by global economic forecasting firm Oxford Economics.

The study on the often-overlooked US expansion of trade and investment in services was commissioned by the China Business Forum, the research arm of the US-China Business Council (USCBC), a key group of American companies engaged in business with the world's most populous nation.

It showed that the United States could add as many as 240,000 new, high-paying service industry jobs by 2015 amid the rapidly growing trade.

Despite the deficit, China also stands to gain as its service sector expands, the report said.

By 2015, it said, if all the impediments to growth in service sector imports and inflows of investments were removed, the average Chinese household would be better off by between 300 to 400 dollars per year, and up to seven million "high-paying, high productivity" jobs would be created.

The benefit would amount to an additional 138 billion dollars in Chinese gross domestic product, it said.

"This study shows that the future benefits are clearly significant for both the US and Chinese economies if China continues to open its service sector to foreign providers," John Frisbie, president of the USCBC, told a news conference in Washington where the findings were released.

"The US is the world's leading service economy and this is an important area for growth," he said.

US service sector exports to China are to a large extent focused in IT, management consultancy and financial services as well as building international transport networks.

China is obliged to open up its market to increased service sector imports and inflows of investment in order to comply with its World Trade Organization (WTO) agreement.

"Our research shows that implementing China's WTO commitments is an essential first step to maximizing the advantages for both economies of service sector trade and investment," said Erik Britton, director of Oxford Economics and lead author of the study.

"If China increases the pace and scope of reform in the sector, the benefits will be even more substantial and long-lasting," he said.

By 2050, according to the study, China will become the world's largest market for services.

US service sector exports to China "in the long run" could reach between 1.5 percent and 3.5 percent of US gross domestic product.

In 2010, the average US household would be better off by about 500 dollars a year as a result of the growth in services trade with China, the study said.

It also identified "serious impediments" to the growth of China's service sector, including "excessively opaque and inconsistent" application of rules and regulations governing foreign exports and investment.

Other restraints were Beijing's "excessive" support for domestic state-owned service providers and bureaucratic burdens for foreign service providers.