Add Yahoo as a preferred source to see more of our stories on Google. Use the Pareto Principle to Prioritize Your To-Do List - Diego Cervo/Shutterstock It’s likely you’ve heard of the Pareto principle ...

The Pareto Principle says that around 80 percent of the effects arise from around 20 percent of the causes. In business, a rule of thumb is that 80 percent of output is produced by 20 percent of the ...

The 80-20 rule is a rule of thumb meant to convey that most attempts at achieving a desired goal will end up being fruitless, but a relatively small percentage of them are bound to succeed. The ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Robert Kelly is managing director of XTS ...