Left Handedness and Economic Discrimination
If there is any bias against left handed people in economic terms, it's against the left handed people as a whole because of mass manufacturing and economies of scale, not against individuals. All news and research items I have found discussing the wages and employment prospects left handed people are inconclusive. Some say left handers make more money, some say less, some say there is no difference. It's a wash.
Handedness is likely only a factor in employment when jobs use mass manufactured industrial machinery (e.g. industrial tools) or specifically built machines. Industrial machinery is almost always made only for the right hand, and thus a left handed person's quality of work may suffer when using equipment made for the wrong hand.
But mass manufacturing is an economic problem. Aside from a few industries such as musical instruments, sporting goods and firearms (who needs that?), manufacturers rarely make left specific products.
Thursday, part 5: Left Handedness and technological discrimination