The European Union Bailout for Irish banks failed to quell financial markets. Borrowing costs for Portugal, Spain and others continue to rise because structural problems created by the euro and a single European market remain unaddressed and more crises are inevitable.

In the United States, banks engage in dollar-denominated deposit gathering and lending. The smooth functioning of the banking and payments systems are guaranteed by the Federal Deposit Insurance Corp., the Treasury and

Federal Reserve

.

When banks in the U.S. fail, the FDIC makes good on deposits up to $250,000 by subsidizing mergers with healthy banks.

If banks are too big to be merged -- for example, the recent

Citigroup

(C) - Get Report

and

Bank of America

(BAC) - Get Report

rescues -- the Treasury and Fed can step in. Such extraordinary measures are possible, because the Treasury can issue dollar-denominated bonds and the Federal Reserve can print dollars. The latter was critical during the recent crisis.

In the EU, individual member states regulate and guarantee the banks that take deposits and lend in euro. The Irish government guarantees covers all liabilities, not just deposits up to $250,000.

Major banks in smaller member states have grown too large for their treasuries to act. They simply can't issue enough euro-denominated bonds without driving up their borrowing costs to prohibitive levels and thrusting regular government operations into insolvency.

In Ireland, the government is potentially on the hook for liabilities equal to two times gross domestic product. No government, big or small, can borrow that much money.

The analog in the United States would have been for North Carolina to have been responsible for all the liabilities of Bank of America.

Prior to its banking crisis, Ireland had sound finances and a balanced budget. Now it has a deficit exceeding 30% of GDP, and even with the EU aid package it faces draconian budget cuts. Along with lost banking business, those will reduce GDP by more than 10% and impose grave hardships on citizens who neither profited from the bank industry nor were responsible for its reckless behavior.

Without European-wide bank regulation and deposit insurance, reasonable ceilings on government guarantees, real EU taxing authority, and a mandate for the EU Treasury and European Central Bank to use bonding and currency printing authority to ensure the stability of banks, Ireland's banking crisis won't be the last of its kind.

Similarly, the budget problems in Portugal, Italy, Greece, and Spain stem from social spending, health care and pensions more generous than their economies can finance with any conceivable national tax regime -- if national taxes are raised too high, businesses will flee, and GDP and tax revenue actually falls.

Whether social benefits are too high throughout Europe is an important issue, but the creation of the single European market has heightened expectations that benefits in southern Europe more nearly approximate the norm established in Germany, Holland and other rich countries.

However, the creation of the single European market for goods and services wasn't accompanied by pan European taxation to finance social spending, health care and pensions. Even though Germany and others are richer by virtue of their participation in the single EU market, they don't assist poorer countries in the manner that New York subsidies social security and Medicaid in Mississippi as part and parcel to the benefits its banking, advertizing and other service industries receive from participation in a single market across the 50 states.

The austerity now planned for poorer counties will not solve their basic fiscal problems - those will shrink their economies and tax bases. The $750 billion EU bailout fund is nothing more than a quick fix that boots the problem to the next generation of national leaders.

In the days before the euro, national government debt was denominated in national currencies, and governments could inflate and devalue their way out of a fiscal mess. That's just a stealth way of imposing losses on bondholders, but in a more gradual, economically less costly, and politically palatable manner.

Now the EU has announced plans for private investors to take losses on bonds issued after 2013 if the weaker governments need another round of bailouts. The fact is sovereign governments in Athens, Lisbon and elsewhere already can enforce such losses on bondholders, and if they choose, boot the euro, reinstate national currencies and start over.

A common currency and single market in Europe simply won't work without continental institutions to guarantee the solvency of banks and share social spending, health care and pensions. Until then, the bonds of individual member states carry high risk of eventual default, and investors would do well to demand much higher interest rates than have been offered in the recent past.

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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.