THE GENERAL THEORY OF EMPLOYMENT,
INTEREST,
& MONEY
by
John Maynard Keynes
Part II: Interest Rates, Aggregate Demand, and the Business Cycle
Page Contents
FUTURECASTS online magazine
www.futurecasts.com
Vol. 6, No. 5, 5/1/04.
A general theory:
& |
In the source of Keynesian theory, "The General Theory of Employment, Interest,
and Money," John Maynard Keynes purports to provide a "general
theory" for self-regulating capitalist market systems. He asserts that it
is applicable generally in all economic circumstances. Classical concepts, on
the other hand, operate only in those rare "special"
circumstances where full employment is possible. & |
With disconcerting frequency, Marxian stupidities were invoked with approval, although in only one instance explicitly crediting Marx. |
However, it is Keynesian theory that - if applicable at all - is applicable only
in very narrow circumstances - like the "special" circumstances of the
depths of the Great Depression where political leaders proved incapable of
reforming the fundamental policy stupidities that prevented recovery.
Marxian stupidities were invoked with approval
with disconcerting frequency, although in only one
instance explicitly crediting Marx. Although controversy over war debts and other
international debts and trade war protectionism was raging around him, Keynes
has not a word to offer about the obvious roles of such government policies in
the business cycle in general and the Great Depression in particular. See Great
Depression Chronology Series, beginning with "The
Great Depression: The Crash of '29." |
Keynes provides a rationale for pursuing short term relief from economic problems by means of budgetary deficits and monetary inflation - palliatives that must ultimately just make matters considerably worse. |
Over a century of capitalist economic history was
thus ignored, as were all arguments to the contrary, until Keynesian theories
were put to the test in the 1970s - and predictably failed miserably wherever
pursued. |
The influence of Marx:
& |
It is evident that
Keynes rejected much of the worst of Marxian doctrine. Keynes relies on
competitive markets to allocate resources where Marx naïvely relies on
socialist directives. Keynes uses market exchange
values instead of Marx's impractical concept of industrial labor use-values.
Keynes had infinite faith in paper money managed by governments - Marx had none.
(Both are wrong on this last one.) & |
Keynes can thus omit all of the twisted indeterminate and nonfunctional definitions and
redefinitions of economic terms that Marx relied upon for the defense of his narrow industrial
labor use-value concept
and for support of his propaganda myth. Profits - frequently referred to as
"income" or "yields" - takes its obvious place for Keynes as a determining factor
for capitalist economic activity. Although he views capitalism as unable to operate at optimal levels for any length of time,
Keynes recognizes - unlike Marx - that capitalism is inherently stable within the parameters of the business cycle. |
Keynes, like Marx, ignores the particular reasons why particular periods of economic trouble have taken place.
Keynes appears totally ignorant of the inherent inefficiency of government management. |
Nevertheless, Marx's permeates Keynes' theory and unsurprisingly infuses Keynesian theory with numerous weaknesses and leaves it divorced from reality in numerous ways.
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The savings gap:
& |
Keynes provides us with psychological propensities to
consume and save. He blames the business cycle and involuntary
unemployment on the notion that wealthy nations - "mature" capitalist
systems - will inevitably save more than can be profitably invested, leading to
periods of economic decline - if not chronic economic decline. Like Marx's
concepts, none of this can be measured, and in fact all the evidence is exactly the opposite. |
As assets accumulate, people and businesses can - and observably do - rely more on their asset wealth than on monetary savings.
The decline in savings rates in the U.S. in recent prosperous times has been notorious for decades. |
Mature - wealthy - capitalist systems require and
have lower rates of savings - not higher. As assets accumulate, people and
businesses can - and
observably do - rely more on their asset wealth than on monetary savings. Their
asset wealth supports vast increases in the purchasing power of credit,
naturally stimulating both consumption and investment, with profit rates and
interest rates sensitively adjusting these flows except when other factors
undermine the pertinent markets. |
Considering the extent and nature of man's weaknesses - and the stubbornness with which policy stupidities are frequently maintained, it is astounding that capitalism can function as well as it does. |
The roots of the business cycle are to be found in
the multitude of pertinent weaknesses of man - NOT in weaknesses alleged in
capitalism. Indeed, considering the extent and nature of man's weaknesses - both
in the private sector and government sector - and the stubbornness with which
policy stupidities are frequently maintained, it is astounding that capitalism can function as
well as it does. |
The impacts of interest rates:
& |
Interest rates play a major role in the
investment demand schedule. Keynes advocates government "monetary policy
directed at influencing the rate of interest." However, he believes that
the other factors that influence the investment demand schedule are too powerful
for such "monetary policy" alone to achieve levels of investment
sufficient to maintain full employment. & |
Keynes argues that it is impossible to determine the rate of interest just from investment demand and savings supply. |
There is a well recognized relationship between investment demand and interest rates. According to classical economic theory, interest rates sensitively adjust to allocate all available funds for investment purposes.
Keynes attacks the classical view. He argues that it is impossible to
determine the rate of interest just from investment demand and savings supply. |
Keynes assumes that people part from their savings only if offered an interest return. Thus, the interest offered counters a "liquidity preference" to hold wealth in the form of immediately usable but sterile cash. |
Keynes uses the term "liquidity preference" for those who prefer to keep significant sums in the sterile form of cash. He assumes that people part from their savings only if offered an interest return. Thus, the interest offered counters a "liquidity preference" to hold wealth in the form of immediately usable but sterile cash.
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Keynes identifies three general reasons for holding cash. Cash is held for transactions, safety, and speculation purposes. Monetary expansion may not always reduce interest rates, and
interest rate reductions may not always stimulate economic recovery. Keynes
recognizes many of the factors that may get in the way. |
However, Keynes asserts that the level of income is the
key factor that determines if savings will equal investment, and that this
belief is what separates him
from the classical view. Classical theory asserts that interest rates will
automatically equate net savings with investment (which except during the depths of
depression does indeed happen).
Yet, Keynes' whole discussion of "classical theory" assumes
that it depends on how interest rates induce savings. (This may have been true
when early capitalist economic systems had archaic financial systems, but for
economic systems with modern financial systems, it is an obvious straw
man - a nonsense theory.) He correctly notes that
savings do not in fact necessarily increase when interest rates increase - but
the investment demand-schedule does in fact fall. Thus, the two lines need not
intersect at all. Some other factors indeed must be involved.
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It is probably the nature of his times that led Keynes astray, since he clearly understood money - as can be seen from the following paragraph.
Clearly, in the midst of the Great Depression, Keynes viewed money on deposit in banks as sitting idle - as the equivalent of "holding cash" - since there is little profit inducement for regular or overnight borrowing of such funds and interest income from loans was hardly enougth to justify the risks and expense of loan administration. (Today, credit cards and lines of credit substitute for cash reserves, large and small.) |
A relatively small monetary effort may be all that is required to move interest rates up or down as desired, because speculators will quickly enter to move the market in the expected direction, and they will arbitrage subsequent interest rate fluctuations on the basis of the expected rate. |
Speculation will affect any "monetary
policy" that is designed to change or control interest rates. The cash needs for
transactions and reserve purposes are fairly constant, but speculation rises and
falls like passing waves, in sensitive response to expectations based on a wide
variety of factors.
In his usual style, Keynes offers a mathematical model to trace the relationships of monetary policy and expectations. These relationships depend on cash holdings, M, and liquidity preferences, L, for purposes of transactions and reserves, M1, and speculation, M2, and their related liquidity functions, L1 and L2, which are determined by income, Y, and interest rates, r. Aside from M, none of these factors are precisely determinable, as Keynes candidly notes, (and even M has more than a few ambiguities). Nevertheless, he proceeds to explain the general impacts of monetary policy in these broad, ill defined terms.
A whole variety of factors apply to this calculation, Keynes notes, such as the financial and industrial characteristics of the economy, social habits, income inequality, and "the effective cost of holding cash." However, for short period calculations, they can all be treated as constants.
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If bonds are traded on public markets, market liquidity should reduce long term opportunity risks to a series of short term opportunity risks, and thus facilitate the raising of debt capital. |
The impacts of interest rate changes are perceptively analyzed
by Keynes. He especially notes the impacts of interest
rates that are artificially pushed below market rates. He calls market rates "safe" rates.
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Monetizing the debt:
& |
Interest rates are very psychological. Manipulation
of interest rates - by expanding the money supply to buy interest obligations -
can only succeed if viewed broadly as "reasonable and practicable and in
the public interest, rooted in strong conviction, and promoted by an authority
unlikely to be superseded." (Sounds like the rationale for a pyramid scheme.) & |
Keynes sees no reason why long term debts as well as short term obligations shouldn't be monetized to bring interest rates down to levels consistent with full employment. He views the hyperinflation of Central Europe during the 1920s - when monetary expansion resulted in capital flight and breakdown of currencies and credit - "when no one could be induced to retain holdings either of money or of debts on any terms whatever" - as "very abnormal circumstances."
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Savings and capital: |
The dire consequences of savings are
emphasized by Keynes. & |
The world had responded to the Great Depression by reducing consumption rates and increasing saving rates, in an environment where there were no investment opportunities for such savings. Excess savings and inadequate rates of consumption are concepts at the heart of Keynes’ “General Theory.” At the end of the book, Keynes notes with approval views that excessive savings are an economic sin. He does not include Marx, here, since Marx viewed all savings as “hoarding.”
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The impact of interest rates - the "time cost of money" -
on capital is discussed by Keynes. Again laboring under a "mature
capitalism" concept similar to that of Marx, Keynes speculates on the
possibility that capital could become so abundant as to meet all productive
needs. So seriously does he take this incredibly stupid concept that he views
post WW-I experience as an example of this phenomenon.
Keynes then displays a Marxist-like hatred of capitalism.
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Interest and money: |
The significance of money and the rate of
interest in terms of money are perceptively explained by Keynes. & |
It is the nature of money that it will not by itself adjust to the factors that cause unemployment. It is those factors that must adjust.
The factor that makes money money - its inelasticity of supply - is viewed by Keynes as the fundamental problem causing involuntary unemployment. |
Money is reliably scarce for private purposes because of:
It is the nature of money that it will not by itself adjust to the
factors that cause unemployment. It is those factors that must adjust. |
High interest rates - high "liquidity premiums" - are blamed by Keynes for keeping the world relatively poor in the capital assets needed to produce widespread abundance. Again - following Marx - he blasts "usury."
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Variables:
& |
In criticizing the "Ricardian world," Keynes
emphasizes that there are factors that frequently prevent interest rates from settling at a level that assures
full employment. (In this, he is surely correct, but not for the reasons he puts
forth.) & |
Interest rate fluctuations alone
observably cannot assure full employment - and may even be prevented from
tending towards such levels for extended periods of time. |
The primary causes of cyclical shift s in performance in the Keynesian world are:the schedule the marginal effi ciency of capital; and the rate of interest. These variables impact the key dependent variables: |
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Three psychological factors - affecting consumption rates, risk assessments, and yield or profit expectations - plus the general wage rate - and the quantity of money - are viewed by Keynes as the "ultimate independent variables" that determine national income and employment at any particular time. |
Three psychological factors—affecting consumption rates, risk assessments, and yield or profit expectations—plus the general wage rate—and the quantity of money—are viewed by Keynes as the “ultimate independent variables” that determine national income and employment at any particular time. The supply and demand schedules for labor, products and services all function within parameters dictated by these variables.& The complex of factors that create the economic environment are all taken as given. Keynes recognizes that the marginal efficiency of capital “depends . . . partly on the given factors and partly on the prospective yield of capital-assets of different kinds; whilst the rate of interest depends partly on the state of liquidity-preference—i.e., on the liquidity function—and partly on the quantity of money measured in wage-units.” & That these factors themselves are just way-stations along the infinite chains of cause and effect in the economic world is readily admitted by Keynes. These factors are at best inexact simplifications of a complex reality. However, he chooses to emphasize these factors because of their dominant impacts and their key characteristics as factors that "can be deliberately controlled or managed by central authority" in capitalist systems. & Keynes also recognizes the complexity of impacts of changes in the various interrelated factors. The task for him is to identify "the factors which it is useful and convenient to isolate." & |
Capitalism is observably stable within cyclical parameters. |
While full employment is a "rare and
short-lived occurrence," the system is observably stable within
cyclical parameters. Employment and pricing shifts tend to run their course and
then move in reverse - rather than proceeding to extremes. & |
It is to eliminate or minimize the fluctuations and move them closer to full employment that is the purpose of the theoretical analysis and the policies proposed by Keynes.
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Wages:
& |
The ability to increase employment by aggregate reductions in
wage levels is critically analyzed by Keynes in some detail. While wage rate
reductions in particular entities or industries will generally be favorable to
employment levels in those entities or industries, reductions spread over the
entire economic system have impacts on consumption and psychology that present a
far more complex picture. & |
It is much easier to expand the money supply, which enables political leaders to avoid many of the immediate unpleasant consequences loosed by downward pressures on wages. |
In an open trading system, there are clear advantages for
employment from system-wide reductions in wage rates. (Small nations that must
trade because they cannot be nearly self-sufficient routinely export their way
out of trouble when faced with periods of domestic economic decline.) In a
closed system, however, Keynes argues that the advantages and disadvantages are
more evenly balanced.
Keynes correctly notes that the benefits of declining prices can be
offset by the increased difficulty of servicing debt. (He does not, however, deign to note that this is a powerful argument against over reliance on debt
capital and government budget deficits.) He also correctly notes that it is much
easier to expand the money supply, which enables political leaders to avoid many of the immediate unpleasant
consequences loosed by downward pressures on wages. An expanding money supply
is also favorable for existing debtors - as there are in abundance in a
Keynesian system.
Keynes thus advises rigid wage systems for closed economic systems.
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Aggregate employment:
& |
To evaluate the changes in employment that
will result from changes in other economic factors - and changes in other
economic factors from changes in employment - Keynes introduces an
"employment function" that he presents in mathematical terms for
individual entities or industries or for the economy as a whole. & |
Classical concepts unrealistically tie employment to changes in real wages in a way that fails to explain involuntary unemployment. |
Employment N equals the employment function F times effective
demand D at the pertinent economic level. Employment is measured in basic
"wage-units" based on market wages and calculated in terms of
money-wages.
This facilitates measurement of the elasticity of both employment and
output in each industry and for the economy as a whole. Keynes provides the
econometric equations for these calculations. He notes that such
calculations have no place in classical concepts, which unrealistically tie
employment to changes in real wages in a way that fails to explain involuntary
unemployment. The classical assumption is "that in practice it is
impossible to increase expenditure in terms of wage units."
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Income can be spent in many ways - so his suggested calculations must be viewed as just "a first approximation" of pertinent impacts.
Real wages will not rise in response to increasing demand as long as there is substantial levels of involuntary unemployment, so price increases from monetary stimulation should be relatively inconsequential. |
Keynes recognizes numerous complications. Unlike Marx, he is no simpleton.
Increases or decreases in income will change “effective The employment “elasticity” of various industries will vary—providing differing impacts on employment results. A shift in demand among industries may also impact employment without any change in the level of demand. There will be varying rates of response to these changes The status of existing inventories will also have obvious However, real wages will not rise in response to increasing demand as long as there is substantial levels of involuntary unemployment, so price increases from monetary stimulation should be relatively inconsequential. Only with full employment would artificial stimulation of demand be absorbed and rendered futile by price inflation.
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Prices:
& |
The disconnect between microeconomic and macroeconomic
theory in classical economics is emphasized by Keynes. The supply and demand
schedules for individual entities and industries do not aggregate. & |
Instead, a crude theory of prices and money supply and money
volatility is invoked. Keynes' theories bring the two worlds together and
facilitate analyses of dynamic factors where there are many variables - as in
fact there always are in the real world. |
Keynes emphasizes that analysis of particular factors should not blind us to their complicated interactions, and warns about the tendency of econometric formula to gloss over such complications. |
However, five specific complications are quickly noted by Keynes.
Thus, prices will indeed begin rising gradually prior to full
employment, absorbing quickly some of the stimulatory impact of an increase in
money supply.
Keynes goes at some length into impacts on interest rates of changes
in the money supply, the resulting impacts on savings and investment, and the
impacts of the identified complicating factors. He provides suitable equations -
wisely again warning about their inherent limitations. |
"The very long-run course of prices has almost always been upwards."
Wages had in fact increased during the previous 150 years, but no faster than productivity, so that prices remained stable while the living standards of labor and the general population kept rising. |
Long run implications are finally acknowledged. Keynes accepts
that, in the long run, there may indeed be a connection between monetary
inflation and price inflation prior to full employment. However, the manner in
which he explains this has some defects.
Keynes also notes that basic interest rates had not declined, but had
remained remarkably steady during the previous 150 years. Long term rates
remained at about 5%, with gilts between 3% and 3½%. Wages had in fact
increased, but no faster than productivity, so that prices remained stable while
the
living standards of labor and the general population kept rising. (Marx was totally oblivious
to the fact that labor was indeed reaping the benefits of productivity
increases.)
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Remedies for the business cycle: |
The schedule of the marginal efficiency of
capital is the key factor in the complex mechanism of the business cycle,
according to Keynes. & |
"The explanation of the time-element in the trade cycle, of the fact that an interval of time of a particular order of magnitude must usually elapse before recovery begins, is to be sought in the influences which govern the recovery of the marginal efficiency of capital."
Interest rates are obviously incapable by themselves of preventing the wide swings of the business cycle both as a matter of theory and of observation.
Keynes concludes that "the duty of ordering the current volume of investment cannot safely be left in private hands."
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With optimistic expectations driving investment during
prosperous times, capital assets flood into the economy. Suddenly, realization
spreads that the high yields optimistically expected cannot be realized. The
marginal efficiency of capital is revealed to be much lower than expected.
Collapsing equity values and levels of confidence cause consumption rates to decline. Eventually, as economic activity declines and reduces demand for funds, interest rates fall.
However, interest rate declines are helpless to quickly reverse the cycle, Keynes correctly points out, until the surplus capital assets and inventories are absorbed "through use, decay and obsolescence," permitting the marginal efficiency of capital to rise to a point that provides sufficient incentives for investment and borrowing at the low interest rates. Inventories are then rebuilt, and consumption levels recover.
Reliance on interest rates to mitigate - much less avoid - the business cycle is thus misplaced, Keynes correctly emphasizes. Interest rates are obviously incapable by themselves of preventing the wide swings of the business cycle both as a matter of theory and of observation.
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Raising the rate of interest frequently "cures the disease by killing the patient."
The proper remedy may lie in stimulating the propensity to consume "by redistributing income or otherwise."
"The right remedy for the trade cycle is not to be found in abolishing booms and thus keeping us permanently in a semi-slump; but in abolishing slumps and thus keeping us permanently in a quasi-boom."
As little as 25 years might be all that is required to reach a true state of "full investment" if only full employment could be maintained for that length of time.
It is possible as a matter of public policy to increase "the stock of capital until it ceases to be scarce."
The correct answer is to increase consumption so investment retains its profitability.
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So, what is to be done? Keynes recognizes that high rates of
interest can be effective in limiting the investment excesses of boom periods,
so that there will be less of an overhang of capital assets and inventories to
work off during recessions. However, this is a crude and destructive weapon,
since it inhibits equally all investment - not just that which is excessive. It
can also inhibit the propensity to consume. It frequently "cures the
disease by killing the patient."
Except during war, Keynes finds no instances of "full employment," although shortages of some skills and the development of some production bottlenecks have observably occurred during prosperous times - especially during the 1928-1929 boom.
Again, Keynes offers the preposterous opinion that as little as 25
years might be all that is required to reach a true state of such "full
investment" if only full employment could be maintained for that length of
time. Moreover, even if it is not possible to sustain investment at full
employment levels, the answer is not to reduce investments through higher
interest rates, but to increase consumption so investment retains its
profitability.
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Particular private sector causes of cyclical downturns are noted just once by Keynes. He offers some brief thoughts on the impacts of inventory and agricultural crop fluctuations. Incredibly - considering the experience of the previous half dozen years - he downplays their significance for recent events.
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Trade Policy
Mercantilism:
& |
International trade is left for last by Keynes. He never
directly faces the fact that his policy prescriptions MUST have adverse impacts
on international trade and payments flows, but he provides strong indications
that he knew this to be the case. |
Under laissez-faire capitalism, "all measures helpful to a state of chronic or intermittent under employment were ruled out, except measures to improve the balance of trade on income account." |
Keynes clearly has a Marxist perspective on foreign trade. The ultimate limitations on mature domestic capitalist markets require that capitalist systems seek investment opportunities and markets abroad. Under laissez-faire capitalism, "all measures helpful to a state of chronic or intermittent under employment were ruled out, except measures to improve the balance of trade on income account."
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A modestly favorable balance of trade is thus vital for capitalist nations under traditional laissez-faire interest rate policies.
There are numerous ways in which mercantilist trade restrictions result in unfavorable trade balances instead of favorable balances.
"A policy of trade restrictions is a treacherous instrument even for the attainment of its ostensible object, since private interest, administrative incompetence and the intrinsic difficulty of the task may divert it into producing results directly opposite to those intended." |
A favorable balance of trade is essential to directly fund
foreign investments and indirectly increase monetary metals. The increase in
monetary metals is essential to keep interest rates low enough to keep domestic
investment levels high. A modestly favorable balance of trade is thus vital for
capitalist nations under traditional laissez-faire interest rate
policies. "An unfavorable balance of trade may soon produce a state of
persistent depression." (Keynesian policies ALWAYS adversely impact the
balance of trade.)
Keynes is cognizant of the numerous ways in which mercantilist trade restrictions result in unfavorable trade balances instead of favorable balances. He notes that England enjoyed a favorable balance in the 19th century while operating essentially an open - free trade - economic system. However, he ignores the fact, observed by Smith during the 18th century, that cities and nations are routinely enriched “in proportion as they have opened their ports to all nations.”
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The only means of correcting trade and payments imbalances while still maintaining the currency peg was to raise domestic interest rates sufficiently to slow down the entire economy. |
The gold-based fixed exchange rate system prior to the Great Depression created dangerous conditions. The only means of correcting trade and payments imbalances while still maintaining the currency peg was to raise domestic interest rates sufficiently to slow down the entire economy. This reduced imports, drove costs down, and improved international competitiveness - but at the cost of domestic depression.
With the advent of the Great Depression, such practices were abandoned by Great Britain and in many other nations in favor of more flexible practices, Keynes notes with approval.
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If all nations abandoned fixed exchange rates and pursued Keynesian policies for achieving full employment, then all would benefit and international competition for precious metals would end. |
The gold standard - a fixed exchange rate standard - was at the heart of the problem prior to the Great Depression, Keynes asserts. This sets every nation in competition over flows of precious metal that alone can dictate prosperity or decline.
Keynes provides some interesting background on early mercantilist thought, but basically provides a simplistic - partial explanation of the problems of the gold standard and fixed exchange rates in the 1920s and before. He concludes that, if all nations abandoned fixed exchange rates and pursued Keynesian policies for achieving full employment, then all would benefit and international competition for precious metals would end.
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Thus, Keynes had to assume that floating exchange rates imposed no similar disciplines. He even looked with some sympathy on closed systems.
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The relationship between interest rates and prosperity has been obvious for millennia, Keynes notes. Efforts of all kinds have been directed at the problem. "Provisions against usury are amongst the most ancient economic practices of which we have record." That interest rates tend to rise "too high" - above "a level best suited to the social advantage" - is a view that Keynes strongly supports. (Even Adam Smith viewed usury laws with some sympathy.)
Schemes for artificially dealing with liquidity preference or hoarding problems have historically been quite common. Keynes notes one - advocated by Silvio Gesell - for imposing a carrying cost on money by requiring that money be stamped each month, with a charge somewhat less than 6% on an annual basis. Keynes correctly notes that this would just chase people into other stores of value - art, gold bars, jewelry, etc.
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Utopia
A promise of utopia:
& |
A final note that is pure Marxist ideology
concludes this work. Keynes finds "no intrinsic reason for the scarcity
of capital." He, like Marx, has total confidence in the ability of
government - of "the community" - to administer economic markets and
manage economic activities. & |
Keynesian policies vigorously applied for about 25 years would
produce full capitalization – “full
investment”— “within one or two
generations” sufficient to make the roles of financiers, rentiers and
"the functionless investor" superfluous. Indeed, their interest rates
and rents are obstacles to progress. Indeed,
their interest rates and rents are
obstacles to progress, he asserts. He thus advocates the “euthanasia of the
rentier.” Mimicking Marx’, Keynes sees “the rentier aspect
of capitalism as a transitional phase which will disappear when it
has done its work.
See, Keynes, "The General Theory of Employment, Interest, & Money," Part I, "Elements of The General Theory." |
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