"Sexual harassment often occurs when there is significant wage disparity," he said.
The unions were very successful in preventing the wage disparity, that happens here.
The average wage disparity between the two carriers is about 6 percent, he said.
Other economic changes have also played a role in the growth of the wage disparity.
On average, they attributed about 10 percent of the growing wage disparity to international trade.
Although the law prohibits discrimination based on gender, there are complaints of significant wage disparities between men and women.
One problem is that global wage disparities are enormous.
The growing wage disparity and scarcity of good jobs has already encouraged young Americans to pursue more education.
But the wage disparity between large and small businesses has shrunk.
Cheap labor has led to a perilous widening in wage disparity.