against all odds
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Maastricht University - School of Business and Economics - Department of Finance; Network for Studies on Pensions, Aging and Retirement (Netspar)
Hersh Shefrin
Santa Clara University - Leavey School of Business
February 25, 2014
Abstract:
We find that individual investors who use technical analysis and trade options frequently make poor portfolio decisions, resulting in dramatically lower returns than other investors. The data on which this claim is based consists of transaction records and matched survey responses of a sample of Dutch discount brokerage clients for the period 2000-2006. Overall, our results indicate that individual investors who report using technical analysis are disproportionately prone to have speculation on short-term stock-market developments as their primary investment objective, hold more concentrated portfolios which they turn over at a higher rate, are less inclined to bet on reversals, choose risk exposures featuring a higher ratio of nonsystematic risk to total risk, engage in more options trading, and earn lower returns.
http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2401230
ich kenne aber meinen bias... je sicherer, desto falsch und umgekehrt... das beruhigt mich dann wieder, und dann... ach ich weiß auch nicht.
cherio
We have come to a clear realization of the fact that true individual freedom cannot exist without economic security and independence. “Necessitous men are not free men.”[3] People who are hungry and out of a job are the stuff of which dictatorships are made.
In our day these economic truths have become accepted as self-evident. We have accepted, so to speak, a second Bill of Rights under which a new basis of security and prosperity can be established for all—regardless of station, race, or creed.
Among these are:
The right to a useful and remunerative job in the industries or shops or farms or mines of the nation;
The right to earn enough to provide adequate food and clothing and recreation;
The right of every farmer to raise and sell his products at a return which will give him and his family a decent living;
The right of every businessman, large and small, to trade in an atmosphere of freedom from unfair competition and domination by monopolies at home or abroad;
The right of every family to a decent home;
The right to adequate medical care and the opportunity to achieve and enjoy good health;
The right to adequate protection from the economic fears of old age, sickness, accident, and unemployment;
The right to a good education.
All of these rights spell security. And after this war is won we must be prepared to move forward, in the implementation of these rights, to new goals of human happiness and well-being.
America's own rightful place in the world depends in large part upon how fully these and similar rights have been carried into practice for all our citizens.
For unless there is security here at home there cannot be lasting peace in the world.
'But you can’t be an effective fox just by letting the data speak for itself — because it never does. You use data to inform your analysis, you let it tell you that your pet hypothesis is wrong, but data are never a substitute for hard thinking. If you think the data are speaking for themselves, what you’re really doing is implicit theorizing, which is a really bad idea (because you can’t test your assumptions if you don’t even know what you’re assuming.)'