Final answer:
The assertion that John Maynard Keynes was against government intervention in the economy is false. He was a proponent of active government management of the economy, especially during recessions, through his Keynesian economics theory.
Step-by-step explanation:
The statement that John Maynard Keynes denounced governmental interference in the economy is False. Keynes was a renowned British economist whose ideas greatly influenced the role of government in the economy, particularly during times of financial distress such as the Great Depression. Contrary to denouncing government intervention, Keynes pioneered the theory that governments should actively manage the economy through fiscal and monetary policy to mitigate the adverse effects of economic downtimes.
Keynesian economics advocated for governmental spending and tax policies that aimed to regulate economic cycles and maintain employment. This interventionist approach is a contrast to the laissez-faire policy that was prevalent before the Great Depression. Keynesian theory has played a significant role in shaping modern macroeconomic policies worldwide.