If you think you need an article to show that gambling has no long term edge....well good luck to you. Gamblers anon is a great resource.
In which case I must assume you believe trading to also be gambling. There is a very long thread on ET whether trading, which is effectively placing a bet on direction, is or isn't gambling. Gambling is basically taking a chance, it's mostly about luck, I don't ever bet solely based on luck, I involve stats, PRM, research and years of experience of either learning price action or following football leagues. Difference is huge between gambling and PRM based betting.
I personally believe trading can be gambling or not gambling depending on the person and method and sports betting to be 100% gambling. Do you have a long term track record of sports betting profitability? Always possible I'm wrong
A person that has been sports betting quite a few years (almost daily) and can't sustain at least a breakeven outcome is a complete tool, wouldn't you say so? I have made a post earlier on sort of giving away the basics of my sports betting strategy, it's all about psychology, stats and PRM. You always win & lose, you must make more when you win, how much more you ought to win vs lose (r/r ratio) depends on your projected win rate, which ought to be very very conservative. My yesterday's accumulator lost on 1 team out of 9 picked to win. Could you correctly predict 8 out of 9 regularly?
Another example of gambling in sports would be betting on your team, my team is Juventus, a clear leader in Italian football. Their record at home is awesome. Yet, I wouldn't back them pre-match, because odds are too low. There's a cup final tomorrow and as much as I'd want to back my team that I'm super confident in I will not back a single match at odds of 1.7. But I will back them if they concede a goal or perhaps 2 (unlikely) before they get a goal in, if this takes place bookies will start raising odds on Juventus to win, if odds are right I will then back them. PRM! http://www.dailymail.co.uk/sport/fo...ian-Supercup-delayed-plane-didn-t-arrive.html