Jeremy Siegel says the banking crisis has made him more optimistic about the US economy next year

• Jeremy Siegel said the banking crisis has made him more optimistic for the US economy next year. 
• The turmoil will squeeze conditions, meaning the Fed should ease up on rate hikes, the Wharton professor said.
• "A natural downshift in how tight policy will become from this is one of silver linings from this current banking crisis," he said. 

Fears about the impact of a banking crisis are preying on markets — but there could be a silver lining for the US economy, according to Wharton professor Jeremy Siegel.