) -- As Presidents Obama and Xi Jinping meet this weekend, China's aggressive actions and halting cooperation on a growing list of issues undermine the U.S. economy and national security.

Diplomacy has not yielded satisfactory results.

Beijing has not stopped manipulating its currency, pirating intellectual property or handicapping U.S. private investment in China. As a consequence, the U.S. has a whopping $320 billion trade deficit with China, which costs American workers about 5 million jobs and slows U.S. growth by about 50%.

China's actions violate its international obligations. However, American advocates of finger-pointing (such as formally calling China a currency manipulator) and more diplomacy (such as establishing yet another framework for bilateral talks) fail to recognize that China won't change behavior that advantage its economy but entail few risks of retaliation.

When confronted, Beijing says that as an emerging economy, China should not be required to offer U.S. exports and investment reciprocity in China. For example, to obtain U.S. food processing know-how,

Shuanghui International Holdings

is purchasing 100% of

Smithfield Foods


. Meanwhile,


(F) - Get Report



(GM) - Get Report

are permitted only limited stakes in their Chinese joint ventures.

TST Recommends

Also see: Obama Appeasement of China, Japan Wrecking Recovery >>

Yet, on major geopolitical issues and even regional conflicts, such as North Korea's nuclear program and China's territorial aspirations in the East and South China Sea, Beijing expects the U.S. to treat it as a co-equal superpower. American recognition of such status is what President Xi is most seeking from Obama.

To respond to Chinese challenges to the interests of Asia allies, such as Japan and the Philippines, President Obama is shifting U.S. naval resources to the Pacific. However, American influence in the region and money are necessary to implement this policy.

Asian states see the success of Chinese state-directed capitalism relative to floundering U.S. performance, and that will make them increasingly reluctant to afford the U.S. Navy the bases and cooperation ultimately needed to succeed. And with the U.S. economy growing so slowly, the U.S. will not be able to afford the naval resources needed to counter Chinese challenges stretching from the Eastern Pacific to the Indian Ocean.

Also see: Microsoft Heads for Clouds in China >>

The huge sums of dollars China acquires through its trade surpluses with the U.S. are permitting purchases of oil and other natural resources in Australia, Africa and the Middle East. With ownership comes influence, and that is tough to counter.

Now, having consistently violated U.S. intellectual property rights by pirating patents and designs, China has upped the ante with cyberpiracy of U.S. companies and by developing the capacity to threaten U.S. infrastructure and military capabilities.

Again the Obama Administration turns to diplomacy, and China responds with denials.

Also see: The End of the Ivy League as We Know It >>

If not to change China then at least to insulate the U.S. economy and national security from reckless and cynical behavior, the Obama administration needs to act more aggressively.

Moderate and progressive economists, such as Fred Bergsten and Paul Krugman, as well as this conservative voice, have advocated direct action on the currency issue: U.S. market intervention to raise the value of the yuan, slash the bilateral trade deficit, boost manufacturing and accelerate growth.

Limit Chinese investments to those sectors posing no security threats and to only minority stakes -- no wholesale purchases of U.S. assets without reciprocity for U.S. businesses seeking to participate in the Chinese economy.

If China wishes to engage in cyberwarfare, after fair warning and without not much delay, the U.S. should do more than harden defenses, but rather go after China's commercial secrets and security defenses as well.

Be plain, demand transparency and engage in talks from a position of strength.

Through fruitless diplomacy, U.S. presidents have permitted China to become stronger and bolder. The lessons of history regarding appeasement are clear.

Only stronger recognizable actions that impose costs on China may bring real change in its conduct and push Beijing to act more responsibly and constructively.

Follow @PMorici1

This article is commentary by an independent contributor, separate from TheStreet's regular news coverage.

Professor Peter Morici, of the Robert H. Smith School of Business at the University of Maryland, is a recognized expert on economic policy and international economics. Prior to joining the university, he served as director of the Office of Economics at the U.S. International Trade Commission. He is the author of 18 books and monographs and has published widely in leading public policy and business journals, including the Harvard Business Review and Foreign Policy. Morici has lectured and offered executive programs at more than 100 institutions, including Columbia University, the Harvard Business School and Oxford University. His views are frequently featured on CNN, CBS, BBC, FOX, ABC, CNBC, NPR, NPB and national broadcast networks around the world.