A troubling economic pattern is flashing a warning for stocks

NYSEThe rising share of GDP tied to public sector activity is a warning for stocks, Jim Paulsen says.The Wall Street veteran said market "turbulence" is ahead if the trend continues.Periods when public sector activity has contributed more to GDPhave been associated with stock weakness.Another warning sign for stocks is rearing its head, Jim Paulsen says.The Wall Street economist and former CIO of The Leuthold Group said he identified a concerning pattern in the US economy that suggests the marke