GROSSMAN-STIGLITZ: Financial Information Paradox

By Staff Reporters

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The Grossman-Stiglitz Paradox was introduced by Sanford J. Grossman and Joseph Stiglitz in a joint publication in American Economic Review in 1980 that argues perfectly informationally efficient markets are an impossibility since, if prices perfectly reflected available information, there is no profit to gathering information, in which case there would be little reason to trade and markets would eventually collapse.

IOW: According to colleague Eugene Schmuckler PhD MBA CTS, the Grossman-Stiglitz paradox is the inability to recoup the cost of obtaining market information and thus implies that efficient markets cannot exist.

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KENNETH ARROW: Information Paradox

To sell information you need to give it away before the sale

By Dr. David Edward Marcinko MBA MEd

SPONSOR: http://www.MarcinkoAssociates.com

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THE FATHER OF HEALTH ECONOMICS

According to Wikipedia, a fundamental tenet of the paradox is that the customer, i.e. the potential purchaser of the information describing a technology (or other information having some value, such as facts), wants to know the technology and what it does in sufficient detail as to understand its capabilities or have information about the facts or products to decide whether or not to buy it. Once the customer has this detailed knowledge, however, the seller has in effect transferred the technology to the customer without any compensation. This has been argued to show the need for patent protection [HIPPA].

CITE: https://www.r2library.com/Resource/Title/0826102549

If the buyer trusts the seller or is protected via contract, then they only need to know the results that the technology will provide, along with any caveats for its usage in a given context. A problem is that sellers lie, they may be mistaken, one or both sides overlook side consequences for usage in a given context, or some unknown-unknown affects the actual outcome.

MORE :https://www.nobelprize.org/prizes/economic-sciences/1972/arrow/facts/

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