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Neutrality Of Money
'Neutrality of money' is a shorthand expression for the basic quantity-theory proposition that it is only the level of prices in an economy, and not the level of its real outputs, that is affected by the quantity of money which circulates in it. Thus the notion - though not the term - goes back to early statements of the quantity theory, such as the classic one by David Hume in his 1752 essays 'Of Money', 'Of Interest' and 'Of the Balance of Trade'. At that time the notion also served as one of the arguments against the mercantilist doctrine that the wealth of a nation was to be measured by the quantity of gold (which in 18th-century England . The term itself is much more recent. It was introduced into the English-speaking world by Hayek (1931), who attributed it to Wicksell (1898). Actually, however, the term in the above sense came into use only later and is due to German and Dutch economists in the decade following World War I to whom (while continuing to attribute the term to Wicksell) Hayek (1935) ( Patinkin and Steiger, 1989).
What is Neutrality Of Money?
The neutrality of money, also called neutral money, is an economic theory stating that changes in the money supply only affect nominal variables and not real variables. In other words, the amount of money printed by the Federal Reserve (Fed) and central bank can impact prices and wages but not the output or structure of the economy.
Understanding Neutrality Of Money
The neutrality of money theory is based on the idea that money is a “neutral” factor that has no real effect on economic equilibrium. Printing more money cannot change the fundamental nature of the economy, even if it drives up demand and leads to an increase in the prices of goods, services, and wages. According to the theory, all markets for all goods clear continuously. Relative prices adjust flexibly and always towards equilibrium. Changes in the supply of money do not appear to change the underlying conditions in the economy. New money neither creates nor destroys machines, and it does not introduce new trading partners or affect existing knowledge and skill. As a result, aggregate supply should remain constant. Not every economist agrees with this way of thinking and those who do generally believe that the neutrality of money theory is only truly applicable over the long-term. In fact, the assumption of long run money neutrality underlies almost all macroeconomic theory. Mathematical economists rely on this classical dichotomy to predict the effects of economic policy.
Neutrality Of Money History
Conceptually, money neutrality grew out of the Cambridge tradition in economics between 1750 and 1870. The earliest version posited that the level of money could not affect output or employment even in the short run. Because the aggregate supply curve is presumed to be vertical, a change in the price level does not alter the aggregate output. Adherents believed shifts in the money supply affect all goods and services proportionately and nearly simultaneously. However, many of the classical economists rejected this notion and believed short-term factors, such as price stickiness or depressed business confidence, were sources of non-neutrality.
The phrase “neutrality of money” was eventually coined by Austrian economist Friedrich A. Hayek in 1931. Originally, Hayek defined it as a market rate of interest at which malinvestments — poorly allocated business investments according to Austrian business cycle theory — did not occur and did not produce business cycles. Later, neo- Keynesian economists and adopted the phrase and applied it to their general equilibrium framework, giving it its current meaning.
Neutrality of Money
The question whether money is 'neutral' with respect to the so-called 'real' economy, in other words, whether money is a 'veil', has been one of the recurrent themes in the economics debate over the last two-and-a-half centuries. The use of the term 'neutral', however, is of more recent origin. To all appearances it was fi.rstused by Wicksell to describe a situation where the market rate of interest is equal to the natural rate, that is the rate that would be found in a barter economy (Wicksell, 1898, p.93; 1936, p.l02). Wicksell actually did not discuss neutral money but neutral interest. The idea, however, also implies neutral money in the sense that it describes a situation where money is indeed no more than a veil. Koopmans (1933 p. 228, n. 1) tells us that the term 'neutral money' was coined in 1919 by the German economist L. von Bortkiewicz and that at the end of the 1920sit more or less formed part of the standard vocabulary of Dutch monetary economists (see also Fase, 1992). It gained currency in the early 1930s through the publications of Hayek (1967) and Koopmans (1933) (see Klausinger, 1989;Patinkin and Steiger, 1989). The term 'neutral money' is, however, somewhat confusing as it has been used for different concepts:
1. The situation that money is a veil in the sense that the economy behaves as if it were a barter economy;
2. The situation of absence of disturbances from the monetary sphere, that is, maintenance of monetary equilibrium at all times;
3. Neutrality in a comparative static sense, that is, the quantity theory of money;
4. Superneutrality, that is the phenomenon that the 'real' economy is indifferent to the rate of inflation.
If money is a veil, the monetary economy behaves exactly like a barter economy. Relative prices of goods and services and quantities traded would not differ. Koopmans (1933) and Hayek (1967) emphasized that neutrality in this sense does not refer to real-world situations, but only serves as a kind of benchmark that helps to study the disturbances that may follow from the use of money. The barter economy they refer to is frictionless. The problem with this approach, is that, if barter is frictionless, there is no rationale for using money and the whole exercise seems futile. It is simply inconceivable that the use of money does not make a difference; that it is,in the happy phrase coined by Samuelson (1968), qualitatively neutral. What Koopmans and Hayek and their Swedish predecessors Wicksell and Davidson in fact did was study the circumstances under which no excess supply of or demand for money would manifest itself; that is, they studied the conditions for monetary equilibrium (on Davidson, see Myrdal, 1933, pp.436-8 and Thomas, 1935). This is equivalent to Say's Equality, or Say's Law seen as an equilibrium condition. Wicksell, Davidson and Hayek saw the constancy of a term or a combination of terms from the equation of exchange as acondition for monetary equilibrium. However, Koopmans demonstrated that this need not be the case, as it all depends on what happens in the real sector of the economy. In a stationary economy M, V, Pand T of course have to remain constant for monetary equilibrium. Davidson argued that Wicksell's criterion of a constant P no longer holds in the case of productivity increases. These are tantamount to an increase in the natural rate of interest. A constant M with the price level falling, and thus a rise in the real interest rate, would be required to maintain monetary equilibrium. Davidson developed his views in a review of WiekselI (1898). WiekselI analyzed a so-called 'pure credit' economy, that is an economy without base money, where all money is created by the banks through credit creation. The banks will increase the volume of credit, and thus the volume of money, if the market rate of interest is lower than the natural rate. Thus the need for a constant Mand a falling P in the case of productivity increases, according to Davidson.
Hayek did not bother about the way money is created, but simply asked himself how much money is required to maintain monetary equilibrium. He noted that changes in the degree of integration of the production process, as, for instanee, when spinning and weaving are divided into two independent firms, have an impact on the demand for cash balances. Such a change implies a change in the velocity of money and any such change calls for a compensating change in the money supply to maintain Say's Equality. His criterion for the neutrality of money consequently is a constant MV(Hayek, 1967). In this case Vis defined as the income velocity of money, not the transactions velocity. Koopmans finally wondered what happens when the supply conditions of goods change. If, for instanee, in an economy with three goods, A, Band C, the supply of A suffers from a bad harvest, no constancy of any item or combination of items from the equation of exchange may ensure monetary equilibrium. If the demand for good A is inelastic, its price will rise. Band C producers spend more on A and less on each other's products. Monetary equilibrium will only be maintained if A producers immediately increase their spending on Band C. Monetary equilibrium requires that MV increases, while Tor y has fallen and P has increased (Koopmans, 1933 and De Jong, 1973).
An older strand in the literature is the quantity theory. The quantity theory implies neutrality in a comparative-statics sense. This is a case of what Samuelson calls 'quantitative neutrality'. In the first fully developed analysis of the quantity theory, David Hume showed how an increase in the money supply increases spending and first results in higher employment (Hume, 1955).Prices increase only gradually and money obviously affects the real sector during the transition between one equilibrium situation and the other. In later mathematical representations of the quantity theory, however, there is a dichotomy between the real and monetary sectors of the economy, in the sense that quantities and relative prices are determined in the real sector and the price level, and hence money prices, in the monetary sector (for instance, Walras, 1965and Divisia, 1962). The economy is represented by a general equilibrium system specifying equilibrium conditions for all markets. The dichotomy implies that demand and supply are functions of real variables only, including relative prices. If equilibrium is found at some set of relative prices, this equilibrium is not affected by any proportional change in absolute prices. While the equation system may be mathematically irreproachable in the sense that the number of unknowns equals the number of independent equations, it lacks an economie mechanism linking individual prices to the money supply.
Patinkin (1965)showed conclusively that, in a general equilibrium model, the price level can only be determined if the excess demand functions for goods contain real money balances as an argument. In this way an economic mechanism is built in which transmits monetary impulses to the real sector: if the money supply increases, real balances grow larger. This willstimulate demand and the monetary impulse willwork its way into higher prices. In more recent approaches, in particular in New Classical Economics, real effects of changes in the money supply follow from unexpected monetary shocks that are mistakenly seen at first by economic agents as real shocks (cf. Lucas, 1996). Otherwise changes in the money supply would feed quasi-immediately into higher prices, as rational economic agents would know the new equilibrium prices and, through competition, be forced to trade at those prices. The transition period from one equilibrium to another would be asymptotically approaching zero. Patinkin gave a mathematical expression to Hume's insight that money can be neutral in the sense of the quantity theory, that is, quantitatively neutral in a comparative-statics sense. A change in the money supply leads to another price level and in the new equilibrium situation quantities and relative prices may have reverted to their original values. There is no reference to a barter economy. Nonetheless, there is something inherently unsatisfactory in mathematical general equilibrium models of a monetary economy, such as Patinkin's. Price determination takes place essentially as a Walrasian tàtonnement mechanism, that is,without any friction. In other words, the transactions technology in such an economy is not different from a barter economy and the use of money does not really make a difference. It is difficult to justify the use of money in such modeIs. Verbal expositions of the quantity theory, such as Hume's, do not suffer from this defect as they do not presuppose a tàtonnement pricing mechanism.
During the transition from one equilibrium situation to another, real variables are affected by monetary impulses and it is easy to imagine that the new equilibrium may differ from the original one. New money usually is not distributed proportionally to existing cash holders as a gift, like the dropping of bank notes from a helicopter envisaged by Friedman (1969, p.4). Money enters the economy through inflationary financed spending by the government, through a balance of payments surplus of the non-bank sector or through bank loans taken out by borrowers. If people borrow to finance consumption, that will drive up the rate of interest, but if businessmen receive net foreign payments their cash balances increase and they are likely to lend out some of the money, in the process reducing the rate of interest, as Richard CantilIon explained (CantilIon, 1964). A change in the rate of interest may have lasting consequences. The structure of the economy may, for instanee, change if aggregate investments increase as a result of the lower rate of interest. The same may hold for any change in the structure of relative prices and its consequent change in the structure of spending (for ameticulous analysis of the way changes in the money supply or money demand work their way through the economy, in the process changing relative prices, (Keynes, 1971). In general, a number of conditions must be fulfilled for money to be fully neutral in a comparative staties analysis:
1. Full price flexibility;
2. Absence of money illusion, so that people do not mistake price level increases for relative price increases;
3. Distribution of new money over economie agents proportional to existing money holdings;
4. Absence of destabilizing price expectations, as when price increases fuel fears of further inflation and thus ascrambie for inflation-proof assets such as real estate, jewellery and foreign assets;
5. No change in the ratio between base money and the total money supply, as that would imply a different relationship between bank money and total money and thus a change in the real volume of bank loans and, consequently, in the rate of interest;
6. Absence of open market policies, as open market purchases, for instanee, increase the money supply and the price level and thus leave the general public poorer;
7. This may lead to higher savings and thus to a fall in the rate of interest; absence of debt denominated in nominal, rather than real, terms;
8. Money is fiat money, as, with full-blooded silver or gold coins, a change in the money supply and a consequent change in the price level would imply a change in the relative prices of silver or gold and all other goods and services.
Of course, neutrality in this strict sense can never be achieved in the real world. In assessments of real world developments, for instanee by classical authors such as Ricardo, the criterion of neutrality therefore is used in a weaker sense; it refers to the level of output, not its composition (Humphrey, 1991). Neutrality in this sense would require that spending increases by actors who see their real wealth increase through an increase in the real value of their holdings of fixed nominal value assets (thanks to a larger than average increase in their holdings of helicopter-dropped money or through deflation) or a fall in the real value of their fixed nominal value debt (through inflation) are just offset by a fall in spending by actors who see their real wealth decrease as a result of an uneven distribution of new money and of price level changes. It goes without saying that neutrality, not only in the strict sense but also in the weaker one, is far removed from the world of Keynes's General Theory. With underutilization of resources the normal state of affairs, changes in the money supply can hardly fail to have an impact on real variables, unless the system is stuck in a liquidity trap.
Even if changes in the money supply were neutral, changes in the growth mte of money need not be neutral. If they are, we have superneutrality. This, of course, is a case of quantitative neutrality again. Different growth mtes of the money supply are associated with different inflation mtes. As long as no interest is received on money, or at least no interest rate that keeps pace with the rate of inflation, real effects on the economy are likely. For instanee, people may react to a higher rate of inflation by reducing their real cash balances and investing more in other assets, such as common stock. The investment ratio increases. This phenomenon is known as the Tobin effect or the Mundell-Tobin effect, called after the pioneers of the monetary growth models featuring this trait (Mundell, 1963;Tobin, 1965). A fundamental problem with this kind of model is that it depiets a onegood economy where trade between economie agents does not play a role and a rationale for the use of money is absent. This implies that the harm inflicted by high inflation on the efficiency of the payments system is neglected (Orphanides and Solow, 1990). In the 1930s, neutrality of money in the sense of the maintenance of monetary equilibrium was seen by the main protagonists as a desirabie state of affairs, as it meant that the economie system would be free from shocks originating from the monetary sphere. Koopmans, however, showed conclusively that, in the case of shocks from the real sphere, no policy advice could follow from the norm of neutrality. The norm of monetary equilibrium loses all attractiveness if we move from a stabie economy with more or less unchanging demand and supply functions, or a Davidsonian kind of steady-state growth, to the world of Schumpeter. In his epoch-making The Theory of Economic Development (1961), Schumpeter argued that money creation is part and parcel of the transformation process which an economy undergoes as a result of entrepreneurial activities. Bank credit allows entrepreneurs to draw factors of production away from other applications and thus to realize innovations (ibid., p. 106;Trautwein, 2000). The question of neutrality in the quantity theory sense is,however, of great practical importance for macroeconomic policy. If money is not neutral, in the weak sense that aggregate economic activity is not affected, or if transition periods between one equilibrium situation to another are long, monetary policy could conceivably play a role in fighting unemployment. Neutrality of money in a strict sense is well-nigh impossible. It may, however, be valid in an approximate way, in the sense that aggregate production is not affected by changes in the money supply. There are strong indications that the quantity theory is not a bad approximation of reality if we look at decades rather than years. But there is little evidence that price ratios and the composition of production are unaffected. It would be hard to prove, or disprove, that they would be, if longer periods are studied where everything in an economy, in particular technology, is in a flux. Situations of hyperinflation have provided useful cases to test the validity of the quantity theory over shorter time periods, but here distribution effects are prominent and the distribution of wealth, and with it equilibrium quantities and price ratios, could hardly return to their pre-inflation values. Compared with empirical studies of the quantity theory, tests of superneutrality are thin on the ground. Support for long-run superneutrality does not appear to be very strong (for a survey of empirical research, see Bullard, 1999).
The Neutrality of Money and Classical Dichotomy (With Diagram)
The Neutrality of Money and Classical Dichotomy!
The classical theory of output and employment is that changes in the quantity of money affect only nominal variables (i.e. money wages, nominal GNP, money balances), and have no influence whatsoever on the real variables of the economy such as real GNP (i.e. output of goods and services produced), level of employment (i.e. number of labour – hours or number of workers employed), real wage rate (i.e. wage rate in terms of its purchasing power).
Actually, according to classical theory, the nominal variables move in proportion to changes in the quantity of money, while real variables such as GNP, employment, real wage rate, real rate of intrest remain unaffected. Classical economists explained that real variables such as GNP, employment, real wage rate are determined by real factors such as stock of capital, the state of technology, marginal physical product of labour, households’ preferences regarding work and leisure.
In the classical model based on flexibility of prices and wages, changes in money supply only affect the price level and nominal magnitudes (i.e. money wages, nominal interest rate, while the real variables such as levels of labour employment and output, saving and investment, real wages, real rate of interest remain unaffected. This independence of real variables from changes in money supply and nominal variables is called classical dichotomy.
The neutrality of money can be graphically illustrated with the help Fig. 3.7 and 3.8. Suppose to begin with, the stock of money in the economy is equal to M0. With this, as will be seen from Panel (d) of Figure 3.7, aggregate demand curve for output is AD0 which with interaction with aggregate supply curve AS determines price level P0. Given the price level P0, labour-market equilibrium determines money wage rate W0 and real wage rate equal to W0 / P0 and level of employment NF in Panel (a) of Fig. 3.7. The level of employment NF given the production function, determines aggregate output YF. in Panel (b) of Fig. 3.7.
Now suppose there is expansion in money supply from M0 to M1 which causes an upward shift in the aggregate demand curve from AD0 to AD1 [see Panel (d) of Fig. 3.7], As a result of this upward shift in the aggregate demand curve from AD0 to AD1 price level rises from P0 to P1 Now, as will be seen from Panel (a) of Fig. 3.7, with money wage rate W0 and price level equal to P1, real wage rate falls to W0/ P1at which demand for labour exceeds supply of labour. This will cause, according to classical theory, money wage rate to rise to W1 in equal proportion to the rise in price level so that real wage is restored to the original level (W1/P1 = W0/P0) and labour-market equilibrium determines the original level of employment N1. With the same level of labour employment aggregate output (i.e. GNP) will not be affected. Thus, we see that with the expansion in money supply, nominal wage rate and price level have risen, but real wage rate, level of employment and output remain constant. Hence it shows that money is neutral in its effect on real variables.
Changes in Money Supply, Saving-Investment Equilibrium and Neutrality of Money:
According to the classical theory, money performs the function of merely a medium of exchange of goods and services and is therefore demanded only for transaction purposes. This means alternative to holding money is the purchase of goods and services. Therefore, demand for and supply of money in the classical system does not determine the rate of interest. When the quantity of money increases, it will leave the real rate of interest unchanged and hence the amount of output saved and allocated to investment (i.e., real saving and investment) will remain the same as shown in Fig. 3.8.
This means the increase in money supply does not disturb the capital market equilibrium or saving-investment equality and consequently the continuation of full-employment equilibrium. However, it may be noted that the higher level of prices of commodities would mean that investment expenditure in money terms will increase in the same proportion as the rise in prices even though the output of commodities allocated for investment purposes remains the same.
But this increase in monetary expenditure for investment is matched by the equal increase in monetary saving brought about by the rise in prices. The higher prices of commodities also mean a proportionate increase in the amount of money received from the sale of commodities so that savers are willing to provide proportionately larger amount of saving at a given rate of interest. Thus, with the increase in quantity of money, the supply curve of nominal saving and investment demand curve will shift to the right as shown by dotted S’S’ and IT curves by the same proportion so that the same real rate of interest is maintained and the same amounts of real saving and investment in terms of commodities are made at the higher price level. A serious limitation of the classical concept of neutrality of money may be noted. As seen above, the neutrality of money is a basic result reached in the classical full-employment model based on flexibility of prices and wages. If increase in money supply and consequent rise in prices has no real effects, then inflation would not be a matter of concern. However, we know that inflation is a matter of serious concern as it lowers standards of living of the people and also adversely affects economic growth. Therefore, efforts are made to control inflation and achieve price stability in the economy.
Inside and Outside Money and Neutrality Condition:
Distinction between inside and outside money is very important in understanding the effect of changes in money on the neutrality of money. The distinction is based on the assumption that the economy is to be regarded as the private sector and the government as foreign to the economy.
Thus inside money refers to the financial claims of economic units in the private economy on other economic units within the economy. Outside money is the government money which is a liability of the government as a debtor and a claim of the private sector as a creditor. Gurley and Shaw have shown that neutrality of money can be ensured with only inside money or only outside money, but not when both types of money are in existence. With only inside money, any increase in the net wealth of the creditors will be counter-balanced by a corresponding reduction in the net wealth of the debtors and there will be no change in the net wealth of the community. Money remains neutral.
With only outside money, an increase in it causes a corresponding increase in the net wealth of the economy, which also leads to a corresponding rise in the price level, leaving the relative prices unchanged. Again money is neutral. But the existence of both inside and outside money disturbed the neutrality of money, because a change in prices in response to one kind of money only restores its value to the original level, but not that of the other part of money. Even the existence of only inside money or only outside money lead to non-neutrality of money through their effect on distribution of wealth. Though the change in inside money does not change the net wealth of the community as a whole, but it certainly affects the distribution of wealth.
If, therefore the demand pattern of the creditors is different from that of the debtors, the effect is bound to be non-neutral one. The distributional effect of the outside money becomes clear when we note that outside money must enter the economy somewhere and then work its way through changes in the demand and supply patterns.
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