Pareto’s Law and Real Estate Marketing An Italian Economist Vilfredo Pareto in 19th Century had written an mathematical model for income distribution in Italy that stated that 80% of the land owned by 20% of people. Wealth was not evenly distributed. Joseph Juran in late 1930’s helped General motor to solve some issues pertaining to productivity in manufacturing but landed finding a solution for decoding the “Code” and “Encoding “ as well - cutting he long story short he found in this process that all the tasks and efforts don't affect the outcome equally and in fact very few tasks and efforts are responsible for the majority of the solution or result that is expected. This applies to everything - he concluded later on when he studied and applied, Pareto rule. He called this research manuscript as “ Pareto’s principle of unequal distribution” You will see there is a huge significance in this principle, from biology to astronomy. And from banking to marketing. 80% of your result