| The general theory of employment, interest and money |  | Author: John Maynard Keynes
Publisher: Macmillan and co., Ltd
Category: Book
This item is no longer available
Avg. Customer Rating:  48 reviews
Pages: 403
ASIN: B0007K1C0U
Publication Date: 1942
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Product Description
In 1936 Keynes published the most provocative book written by any economist of his generation. Arguments about the book continued until his death in 1946 and still continue today. This new edition, published 70 years after the original, features a new introduction by Paul Krugman which discusses the significance and continued relevance of The General Theory.
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| Customer Reviews: Read 43 more reviews...
 Backwards, and Repeatedly Debunked September 23, 2008
0 out of 2 found this review helpful
This book is a lesson in garbage in, garbage out. Keynes starts with numerous false assumptions, and follows them to their false conclusions. Keynes has been proven wrong time and again, not only through the texts of much better economic writers (Hayek, Rothbard, Mises), but also through the plain facts of history.
Keynes' book reads like through the looking glass, where down is up, and everyone is drunk at a mad tea party. Keynes' ideas are precisely what will (and already have) lead society to economic failure and misery. The current financial crisis is only the latest in examples of why Keynes was wrong.
Horribly formatted September 8, 2008
1 out of 2 found this review helpful
This version is virtually unreadable, due to its terrible formatting, which clearly no one bothered to even glance at after some kind of machine translation from another format.
 Keynes proves mathematically that the Speculative demand for money creates involuntary unemployment July 16, 2008
3 out of 3 found this review helpful
Keynes presented a generalization of neoclassical theory.Keynes starts the GT in chapter 2 where he analyzes the neoclassical theory of the labor market.He notes that the most advanced technical treatmant was presented by Pigou in his 1933 book,The Theory of Unemployment.Keynes demonstrates in the appendix to chapter 19 that Pigou's model of his theory is a special case of Keynes's general model developed in chapters 20 and 21.The primary result of neoclassical theory is that an optimum result (full employment)is obtained in the aggregate labor market if the aggregated real wage(w/p) equals the marginal product of labor(mpl) derived from an aggregated production function(O= phi(N)).This is expressed as w/p=mpl,where w is the money wage,p is the price level,and mpl is the aggregated marginal product of labor.In chapters 20 and 21 Keynes presented his mathematical analysis.This leads to his generalization of the quantity theory's equation of exchange,MV=PO,to incorporate uncertainty and the speculative demand for money besides risk and the transactions demand for money.There are two such generalizations.Chapter 20 analyzes the labor market and the commodity market.Mathematically,there are two ways of expressing Keynes's first generalization in chapter 20-w/p=mpl/ep or the more convenient w/p=mpl/(mpc+mpi).Unless the elasticity ep=1(ep can range from 0 to 1) or the mpc + mpi=<1,the RHS of both equations will rise .This requires that the money wage also rise.Neoclassical theory requires that the money wage fall.The condition that the elasticity ep equal 1 means the economy is operating on the boundary of the aggregate production possibilities function curve because the labor market clearing condition,w/p=mpl, is an economically efficient outcome.It is thus allocatively efficient and productively efficient.
In chapter 21,Keynes presents his generalization of the neoclassical equation of exchange with the money market added to the labor and commodity markets.The mathematical generalization now becomes w/p=mpl/e,where e is the elasticity that"... measures the response of money prices to the quantity of money in an aggregated economy"(GT,p.305-306).Unless e=1,where e can range between 0 and 1 ,as implicitly assumed by neoclassical economists,the RHS of the above equation will rise and it will be impossible for labor,in the aggregate, to cut its money wage as claimed by neoclassical theory in order to reduce unemployment.Again,the money wage will have to rise.
The final point that needs to be cleared up is that Keynes's aggregate supply function is correctly specified and analyzed mathematically in chapter 20 on p.283 and in a footnote on pp.55-56 of the GT.The reader must be able to apply simple integration to Keynes's derivatives.I give the steps below:
Go to footnote 1 on p.283 of the GT.Keynes defined P to be expected economic profit.The second line from the bottom of this footnote reads as " = delta P ", which is the same as" = dP".That should actually be " = delta P w subscript" due to either (a) a typographical error made by the printer in the GT or (b) because Keynes felt that it was obvious,since he divided D=Z through by w,to get Dw subscript = Zw subscript,which means that you must divide P by w.P is AUTOMATICALLY DEFINED IN TERMS OF WAGE UNITS.Pw subscript is equal to Dw subscript-N.Thus dP(or dPw subscript)=d(Dw subscript - N) =dDw subscript -dN.Simple integration gives the following result- Pw subscript=Dw subscript-N .Divide through by w and you obtain P=D-wN.Add wN to both sides.You get P+wN=D=pO or Z =D.Z=P+wN.w is the money wage.N is aggregate employment.p is the expected price level.O is real output,which is a function of N.D,the expected aggregate demand function,is thus equal to expected total revenue.Z,the expected aggregate supply function,is equal to total variable cost plus expected economic profit.
The same analysis and result is contained in footnote 2 on pp.55-56 of the GT.Keynes defines the derivative dZw subscript/dN=dphi(N)/dN =phi'(N)=1,where you use "d" instead of " delta " notation used by Keynes.Integrate to obtain Z=wN + C,where C is a constant of integration,after you divide through by w.We know that D=Z by definition and that D=pO from chapter 20.We get wN +C=pO or C=pO-wN once we subtract wN from both sides.By definition,C must be equal to actual profit if p is an actual price and expected profit if p is an expected price.Of course,if P=0,then you get Z=wN = total variable cost.(This is the case of constant returns to labor.Note that Keynes covered this case explicitly at the top of p.284, as well as on p.306 of the GT ,in chapter 21.)This,of course is the mistake that Don Patinkin made continuously from 1976-1989 in 3 books and 5 articles-failing to consider that Z is linear in both the diminishing returns and constant returns to labor cases.Of course,in the case of constant returns to labor,you would get a linear 45 degree cross representing the aggregate supply curve.The same mistake is made by all Post Keynesian economists like Sydney Weintraub, Paul Davidson,Douglas Vickers,Jan Kregel, Victoria Chick,Nevile,Skott and Dutt,etc.They fail to consider that Keynes worked with both cases, diminishing returns to labor as well as constant returns to labor,in his microeconomic analysis contained in chapters 20 and 21 of the GT.It is not surprising that the Post Keynesians can not deal with the technical analysis contained in chapters 20 and 21 of the GT and expressed by Keynes in the form of elasticities.Instead,they build their analysis on the claims of a mathematically illiterate economist named Dennis Robertson.It was Robertson who claimed that Keynes's theory of effective demand(D-Z analysis)was contained in chapter 3 of the GT.All Post Keynesians base their work on the assumption that Robertson was correct.Post Keynesians also confuse the D=Z locus,the aggregate supply curve,with Z,the aggregate supply function.All of these errors can be traced back to the original errors made by Dennis Robertson in correspondence with Keynes in Feb.-Mar.,1935 about the first 17 chapters of the GT.Keynes told Robertson very clearly that the anaysis of his D-Z model was in a chapter called the Employment Function.Chapter 20 of the GT is titled," The Employment Function ".After seventy years it is time for economists to read this chapter upon which KEYNES SAID EVERYTHING DEPENDS.
The reason why ed <1 ep <1,e <1, and mpc+mpi<=1 is that the decision to invest in long lived durable capital goods ,within an economic environment of technological and financial change,advance,and innovation,thus creating the problem of technological obsolescence,is made under conditions of Keynesian uncertainty or Ellsbergian ambiguity.Neoclassical theory postulates that there is no uncertainty or ambiguity,only risk ,which is universally represented as the standard deviation of a normal probability distribution.This means that aggregate investment expenditure will not be erratic,unstable,and insufficient over time.Involuntary unemployment can't result
Keynes argues,as does Daniel Ellsberg implicitly,that the assumption of normality is a special case.Hence ,Keynes's generalization that covers ambiguity and/or uncertainty.This means that aggregate investment will be erratic,unstable,unpredictable,and insufficient over time.Involuntary unemployment will result.
Economics of Failure May 23, 2008
2 out of 7 found this review helpful
John Maynard Keynes is the collectivist's savior. Finally, the welfare statist thinks, someone who actually makes my ideas sound good to economists. Unfortunately, Keynes's theory is nothing new. It should be incredibly obvious to any non-professional that if a large entity (government) decides to spend a lot of money over a short period of time, then in the short term there will be very pleasurable effects. In the long term, however, a large sum of money spent by the government will have very harmful effects, distorting the price system and creating inflation, whereas a large sum of money spent by a private entity will have a sustained benefit on the economy.
The Economics of Pessimism May 9, 2008
1 out of 1 found this review helpful
One sometimes hears that money is the root of all evil. Keynes would agree, but not because of any animosity towards the profit motive (Keynes was definitely not a socialist and he even agreed with and endorsed Hayek's "The Road to Serfdom"), but because in an economy using money imbalances between the value in any currency of demand and the value of supply are possible.
Virtually all economists accept the price mechanism which speedily reconciles any imbalance between supply and demand. The macroeconomy is the sum of all markets and should therefore be more or less in equilibrium. The great French economist Jean-Baptiste Say formulated this in one of the rare laws in economics : every aggregate supply creates a corresponding aggregate demand. The law definitely holds in a barter economy, because even if products or services are not consumed they are lent out to others who will use them. Hoarding purchasing power by keeping money to put under the matress is impossible... without money.
Money makes it possible to have leakages of purchasing power because money received by selling goods or services is not spent. If money earned is not consumed it is by definition saved. Usually this would mean that these sums are made available to individuals or companies in need of capital so that savings are equal to investment. Any imbalance would be readjusted by a change in the interest rate. However, Keynes pointed out that saving is not necessarily synonimous with investment viz. that savings can be hoarded as money and that there are good reasons for doing so.
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