Take the following as truth: From estimated annual household postage expenditures in 1994 are approximately $5 billion, which implies a 2.7 percent reduction in annual aggregate expenditures or approximately a $135 million reduction in annual revenues from household sales, holding all else constant.
Then the following statement: "The constant change can be attributed to the steady rise in competition." is true, false, or inconclusive?
Answer: Inconclusive