"Most subsidies are cash grants or loans that the government gives to businesses. It encourages activities the government wishes to promote."
Because:
Cash subsidies, such as the grants mentioned above.
Tax concessions, such as exemptions, credits or deferrals.
Assumption of risk, such as loan guarantees.
Government procurement policies that pay more than the free-market price.
Stock purchases that keep a company's stock price higher than market levels.
https://www.thebalance.com/government-subsidies-definition-farm-oil-export-etc-3305788