published Dec 20th 2016, 10:57 am, by Tyler Cowen (Bloomberg View) —As Beijing and more than 20 other cities in northern China have been plunged into another winter air-pollution crisis, with choking, toxic air and many people afraid to wander outside, observers wonder when China will start making significant progress

Every company wants to clinch the maximum share of the market. But, it’s not so easy, given the amount of competition in the market. Customer training is an important part of the company’s sales strategy.