Price controls? No. But do examine the inputs to pricing.

[Frasier Balzov]

2. Agricultural subsidies go back decades.

Agricultural subsidies were argued to maintain a constant supply of food by keeping farmers in business.

Petroleum subsidies too, through favorable tax treatment given to exploration, drilling and pipeline operations.

Those two examples of government intervention immediately came to my mind. Intended to rig the economy in their own way, for the benefit of suppliers and consumers both.