Data from the Turkish Institute of Statistics showed Tuesday that Turkish consumer confidence fell to 57.3 points in October, the lowest level in nearly 10 years, compared to 59.3 points in the previous month.
The current level of confidence indicates a pessimistic outlook and should exceed 100 to indicate optimism.
The confidence level was 56.7 in December 2008.
The government is taking measures to boost investment in the economy and support the lira against more than 33 percent against the dollar this year on fears of President Recep Tayyip Erdogan's influence over monetary policy and a row with the United States.
Earlier, Turkey sharply lowered its growth forecast for the current year and next year and expected inflation to hit 20.8 percent this year and fall to 15.9 in 2019.
