In the Cambridge Cash Balance Approach to money demand (M = kPY), ‘k’ represents:
AThe velocity of money circulation
BThe real interest rate
CThe fraction of nominal income individuals desire to hold as cash balances
DThe marginal propensity to consume
Explanation
In Pigou and Marshall’s Cambridge equation, k represents the proportion of nominal income people prefer to hold in liquid cash balances (k = 1/V).

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