Final answer:
Since 1929, there have been 14 declared recessions in the United States.
Step-by-step explanation:
The statement is true. Since 1929, there have been 14 declared recessions in the United States. This information is supported by the sources provided, which mention specific recessions such as those in 1973-1975, 1981-1982, 1990-1991, and 2001. Additionally, it is mentioned that there is an average of about one recession every six years.