VIENNA  - Top international bankers and investors head to Vienna this week for roundtable discussions on European financial integration and Europe's role in the global economy.

Top figures such as European Central Bank President Jean-Claude Trichet, Austrian central bank governor Ewald Nowotny and billionaire financier George Soros are all to give keynote speeches at the regular meeting of the Institute of International Finance (IIF) being held in the Austrian capital from Wednesday through Friday.

The meeting will be chaired by IIF chief Josef Ackermann, head of Germany's largest bank Deutsche Bank, with Greek Prime Minister George Papandreou and his Hungarian counterpart Viktor Orban, Austrian President Heinz Fischer and Austrian Finance Minister Josef Proell on the guest list.

The list of top bankers expected to attend include the head of British bank HSBC, Stephen King; Jiang Jianqing of China's Industrial and Chemical Bank (ICBC); Jes Staley of JP Morgan; and Oswald Grubel of Swiss banking giant UBS.

On the agenda are the financial crisis and possible global responses, as well as financial market reforms.

IIF is based in Washington and represents 400 banks in more than 70 countries.