A Quote by Eugene Fama

I take the market-efficiency hypothesis to be the simple statement that security prices fully reflect all available information. — © Eugene Fama
I take the market-efficiency hypothesis to be the simple statement that security prices fully reflect all available information.
The proposition is that prices reflect all available information, which in simple terms means since prices reflect all available information, there's no way to beat the market.
I contend that financial markets never reflect the underlying reality accurately; they always distort it in some way or another and the distortions find expression in market prices. Those distortions can, occasionally, find ways to affect the fundamentals that market prices are supposed to reflect.
I believe in market economics. But to paraphrase Churchill - who said this about democracy and political regimes - a market economy might be the worst economic regime available, apart from the alternatives. I believe that people react to incentives, that incentives matter, and that prices reflect the way things should be allocated. But I also believe that market economies sometimes have market failures, and when these occur, there's a role for prudential - not excessive - regulation of the financial system.
In a narrow market, when prices are not getting anywhere to speak of but move within a narrow range, there is no sense in trying to anticipate what the next big movement is going to be. The thing to do is to watch the market, read the tape to determine the limits of the get nowhere prices, and make up your mind that you will not take an interest until the prices breaks through the limit in either direction.
To economists, prices serve as crucial signals to producers and consumers. In a regulated market, the state sets prices high enough for private companies to cover their costs and earn a guaranteed profit for their investors. But in a deregulated market, prices should vary with demand and supply.
Under communism, prices were not allowed to reflect economic reality. Under capitalism, prices don't reflect ecological reality. In the long run, the capitalist flaw -- if uncorrected -- may prove to be the more catastrophic.
The interchange of information is creating a new paradigm for the energy efficiency market
There is no such thing as agflation. Rising commodity prices, or increases in any prices, do not cause inflation. Inflation is what causes prices to rise. Of course, in market economies, prices for individual goods and services rise and fall based on changes in supply and demand, but it is only through inflation that prices rise in aggregate.
We shouldn't all be fixated just on what's not available. We should take a step back and look at the total that's available, because there's a mountain of information about us.
In a free market capitalist system, 'price signals' are everything. Prices are determined by buyers and sellers in the free market, and these prices are broadcast from the exchanges, reaching all corners of the economy - where they are used to transact business.
When I did 'The Tudors,' there was massive information available and a ready-made market.
There is no justifiable prediction about how the hypothesis will hold up in the future; its degree of corroboration simply is a historical statement describing how severely the hypothesis has been tested in the past.
A fact is a simple statement that everyone believes. It is innocent, unless found guilty. A hypothesis is a novel suggestion that no one wants to believe. It is guilty, until found effective.
There is a complete difference between art and the art market. Prices are high now for the simple reason that there are people are willing to pay them. The market dominates the art world today because at the moment collectors call the shots. Like everything else that won't last forever.
Information costs are reduced by the existence of large numbers of buyers and sellers. Under these conditions, prices embody the same information that would require large search costs by individual buyers and sellers in the absence of an organized market.
Money and prices and markets don't give us exact information about how much our suburbs, freeways, and spandex cost. Instead, everything else is giving us accurate information: our beleaguered air and watersheds, our overworked soils, our decimated inner cities. All of these provide information our prices should be giving us but do not.
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