New York (CNNMoney) - President Obama's former chief economic adviser takes issue with Jack Welch's assertion that he, like the former General Electric CEO, has accused the government of manipulating the unemployment rate.

Austan Goolsbee responded on Twitter to Welch's op-ed piece in The Wall Street Journal on Wednesday. In the Journal, Welch defended his widely noted Tweet last week questioning the drop in the September jobless rate, citing Goolsbee as saying in 2003 that "the government has cooked the books."