If you estimate for each one of these studies that have been done, what are the chances that they would have found that effect? They would have found a statistically significant signal if the effect was what is suggested by the largest studies. Their median chance would be 8.5%. So 50% of the studies would have 8.5% chances or less to be able to detect that signal which is amazing. I mean, if you think of that, these studies are depressing actually. iReport.com: Are minimum wages worth more than $1 an hour in your state and region?