I started serious Investing Journey in Jan 2000 to create wealth through long-term investing and short-term trading; but as from April 2013 my Journey in Investing has changed to create Retirement Income for Life till 85 years old in 2041 for two persons over market cycles of Bull and Bear.

Since 2017 after retiring from full-time job as employee; I am moving towards Investing Nirvana - Freehold Investment Income for Life investing strategy where 100% of investment income from portfolio investment is cashed out to support household expenses i.e. not a single cent of re-investing!

It is 57% (2017 to Aug 2022) to the Land of Investing Nirvana - Freehold Income for Life!


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This blog is authored by an old multi-bagger blue chips stock picker uncle from HDB heartland!

"The market is not your mother. It consists of tough men and women who look for ways to take money away from you instead of pouring milk into your mouth." - Dr. Alexander Elder

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Saturday 7 September 2013

The Luck Factor in Investing???



Stock picking is part science, part art, part luck, part intuition, and always uncertain - "not precisely knowing." - Author?


Investment is luck or skill? Michael Mauboussin resolves the mystery

The Success Equation: Untangling Skill and Luck in Business, Sports, and Investing by Michael J. Mauboussin

How did this book come about?

The topic of skill and luck is something I've thought about a lot over the years, especially in the context of sports — where I have been an avid participant and a fan all of my life — as well as business and investing. Skill and luck is interesting in the sense that everyone knows it's important but there's been relatively little done on it.

There is work on each of the components, including skill, luck, reversion to the mean, but nowhere is this all brought together. Further, I had enjoyed a number of very popular books on randomness and luck, but felt they emphasised more the fact that luck is pervasive rather than how to figure out how much luck there is in an activity and, most importantly, what to do about it.

How do you define luck?

I suggest that there's luck in an activity when three conditions are met. First, it applies to an individual or organisation. Second, it can be good or bad. And, finally, it is reasonable to expect that a different result could have occurred. I also like to distinguish between randomness and luck. I view randomness as operating at a system level, and luck at an individual level. For example, if I gather 100 people and ask them to call consecutive coin tosses, randomness tells me how many will call 4 in a row correctly. If you are the one who calls them right, you are lucky.

Note cases where luck wouldn't apply. For instance, Warren Buffett has often said that he was lucky to have been born when and where he was born. But by the definition I have adopted, that is not lucky because it is not reasonable to expect a different outcome could have occurred. Only he could have been born to those parents at that time. Now he may have been fortunate, but by my definition he was not lucky.

You say investing is a mix of skill and luck — how exactly does that work?

One way to think about it is that skill reflects elements under your control and luck reflects elements outside your control. So in the context of investing, you can identify things within your control: which stocks you select, how diversified your portfolio may be, how your portfolio is positioned based on various possible economic outcomes.

But there's a great deal that will be out of your control, including macroeconomic developments, unanticipated behavior by the customers or competitors of a company in which you hold stock, and broader technological change.

So investing will have elements of skill and luck. The key question is how much does each element contribute to long-term results. The answer, by the way, is that luck is a major factor for investment results over the short term but skill is relevant over the long haul.

Read? Luck and Skill???



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