Tariffs also make capital deployment more difficult as they narrow the range of suitable investments.
Forecasts and their role in policymaking are being reviewed in light of economic shocks.
This is the 38th year Wien has given his views on economic, financial market and political surprises.
The UK central bank will include purchases of index-linked gilts.
Investment banks had most positive view of their growth prospects in SIX's Future of Finance Study.
Dimon said the U.S. economy is strong but war in Ukraine and sanctions on Russia will slow the global economy.
Morgan Stanley CEO wants the Fed to raise rates in March.
Wien started the tradition in 1986 when he was the Chief U.S. Investment Strategist at Morgan Stanley.
Headline inflation in the U.S. hit 4.2% annualized in April, a level not seen since 2008.
