When the inflation is very moderate, it acts as an incentive to traders and producers. The profit due to rising prices encourages and induces business class to increase their investments in production, leading to generation of employment and income.
(i) However, hyper-inflation results in a serious depreciation of the value of money and it discourages savings.
(ii) When the value of money undergoes considerable depreciation, this may even drain out the foreign capital.
(iii) With reduced capital accumulation, the investment will suffer a serious set-back which may have an adverse effect on the volume of production.

n = pk (or) p = n / k
Where
n is the total supply of money
p is the general price level of consumption goods
k is the total quantity of consumption units the people decide to keep in the form of cash.
because it is measured in terms of consumer goods.
According to Keynes, peoples desire to hold money is unaltered by monetary authority. So, price level and value of money can be stabilized through regulating quantity of money (n) by the monetary authority.
Later, Keynes extended his equation in the following form:
n = p (k + rk') or p = n/(k + rk')
Where,
n = total money supply
p = price level of consumer goods
k = peoples' desire to hold money in hand (in terms of consumer goods) in the total income of them
r = cash reserve ratio
k' = community’s total money deposit in banks, in terms of consumers goods.

(i) Basis of the Credit System: Money is the basis of the Credit System. Business transactions are either in cash or on credit.
(ii) Money facilitates distribution of National Income: The task of distribution of national income was exceedingly complex under the barter system.
(iii) Money helps to Equalize Marginal Utilities and Marginal Productivities: Consumer can obtain maximum utility only if he incurs expenditure on various commodities in such a manner as to equalize marginal utilities accruing from them.
(iv) Money Increases Productivity of Capital: Money is the most liquid form of capital. In other words, capital in the form of money can be put to any use.

(i) Money as a medium of exchange: This is considered as the basic function of money. Money has the quality of general acceptability, and all exchanges take place in terms of money.
(ii) Money as a measure of value: The second important function of money is that it measures the value of goods and services.

(i) The paper currency standard reffers to the monetary system in which the paper currency notes issued by the treasury of the Central Bank.
(ii) Paper currency is not convertible into any metal.
(iii) Its value is determined independent of the value of gold or any other commodity.
(iv) It also known as managed currency standard.