Limited wants, Limited resources
During the 1980s Microsoft adopted the Bell Curve Employee assessment tool, also known as 'Stack Ranking'
The system forced each department to assess their employees at the end of the year and grade them under 'top-performers', 'average' 'below-average' and 'poor'
The idea was to 'cull' employees that were not contributing and ensure high-performers get bonuses and promotions.
The system worked very well in the 80s and the 90s.
However, Microsoft's decline in the 2000s against apple was sharp and many ex-employees of Microsoft point to the 'stack ranking' system that eventually paved the way for internal politics rather than innovation.
Russian nobles opposed industrialization because it would damage agriculture. Many of them were farmers or depended on agriculture in some way. Also it would threaten their power is they ruled over farm workers.<span />
I don't believe they are. I don't believe they have been proven real either.
The Columbian exchange caused Native Americans to come into contact with diseases like small pox, yellow fever, and malaria. Since they had not developed resistance to these types of illnesses, a lot of them died from it.
The deaths of all of these Native Americans caused for a labor shortage, which eventually lead to African slavery, since most of the Natives had died off.