TABLE 9-1 The Frequency of Price Adjustment
This table is based on answers to the question: How often do the prices of your most important products change in a typical year?
Frequency Percentage of Firms
Less than once 10.2
Once 39.3
1.01 to 2 15.6
2.01 to 4 12.9
4.01 to 12 7.5
12.01 to 52 4.3
52.01 to 365 8.6
More than 365 1.6

Source: Table 4.1, Alan S. Blinder, β€œOn Sticky Prices: Academic Theories Meet the Real World,’’ in N. G. Mankiw, ed., Monetary Policy (Chicago: University of Chicago Press, 1994), 117–154.