I'm going to start two new series for those who started out investing in the last few years. The series will be called Newbie Thoughts and Newbie Mistakes. I will randomly write up on issues that others may find useful. They will range from mundane, simple, ideas to interesting ones. Vetern investors may find them lame and may want to skip over the posts. Also, one should take my comments to be the equivalent of the 'blind leading the blind' because, quite frankly, I'm a newbie too :)
Know Your Circle Of Competence
Once you start investing for real, one of the important things is to know, what Warren Buffett coined as, your circle of competence. Just like in other aspects of life, everyone will have their strengths and weaknesses when it comes to investing.
It is very difficult for those who just started investing—say less than 5 years experience*—to say what is one's circle of competence is. After only trying many different strategies will we know if we are cut out for it or not. Furthermore, we will learn new things as we gain experience and this will expand our circle.
There is some benefit in thinking about your circle of competence, or at least what you think it is. In addition, one may want to think about how to improve your circle.
Even if it looks like a basic thing, you should probably write down what you think your circle of competence may be, and areas that you feel you are strong in and others where you are weak. Once you have such a list, you can set a goal to improve an area or, conversely, automatically ignore potential investments in areas you have no competitive advantage, even if you are attracted to it. For example, let's say you run into a seemingly attractive risk arbitrage opportunity but you feel that you are not cut out for it. Well, even if you are attracted to the opportunity—everyone else may tempt you by saying it's great and a surefire way to make money—you may want to ignore it. Or say you are not very good with sovereign bonds and run across articles or opinion pieces suggesting that Mexican bonds are good. Well, you may decide to improve the knowledge in this area and try to bring that area within your circle of competence. Whether you actually succeed in bringing it within your circle of competence depends on the person but at least you have a plan.
Here is how I perceive myself right now, along with notes on why I feel the way I do. Just because I say something is within my circle of competence and is "strong" does not mean that I'm good at it—all it means is that I feel comfortable and am willing to tackle it.
Center of the circle of competence (strong)
Boundary of my circle of competence (weak)
Areas outside my circle of competence (avoid)
I'm sure I'm missing a lot but it's just the beginning. Everyone should probably think about where their strengths and weaknesses may lie...
FOOT NOTE:
* Like with any non-investing task, experience does not simply refer to the number of years. The amount of effort and knowledge gained in those years matters a great deal. Someone who has a high opportunity cost of investing—say one with a high paying job, or has kids to take care of, or has to spend a lot of time on relationships, or has a rich social life, or is in school—may be spending far less time than some guy who has a lame job, lives in the middle of the Arctic, and has nothing else to do ;) There are people who have been investing for 15 years but have less knowledge and expertise than some bloggers I read, who have only been investing for 3 or 4 years.
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About This Blog
An eclectic blog chronicling a slow-moving turtle's attempt at gaining financial independence. I am an amateur contrarian investor with a value-investing tilt and influenced by macroeconomics. My risk tolerance is very high so treat everything I say as very risky... Also feel free to visit my non-investment blog describing my life and seemingly random thoughts...
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3 Response to Newbie thoughts: Know your circle of competence
This is something that even people with a lot of experience should think about. Thinking you know something is where you are bound to get burnt.
When I was done reading the piece and ready to comment, I saw that Jae Jun had stolen my thunder. The behavioral errors at the investment firms that I study and consult for are not much different than those of individual investors. Often a simple, common sense analysis like the one you describe is remarkably effective at building a foundation for better analysis.
Jae and Tom,
Thanks for the comments. I agree that this is something that everyone should be doing.
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