The 'countervailing duty' is imposed to countervail: MCQ with Answer and Explanation

Explanation:
The slope of an isoquant is the marginal rate of technical substitution, the rate at which one input can substitute for another keeping output constant.

Explanation:
Commercial banks accept demand deposits (current accounts), savings deposits and time (fixed) deposits. Equity deposits are not a standard category of bank deposits.

Explanation:
UPI enables instant interbank transfers through virtual payment addresses using mobile devices.