Why Tim Cook et al are against Trump's travel ban: It's bad for business

Diversity is not simply the right thing to do, it also has obvious payoffs for businesses

Donald Trump’s executive order to restrict immigration from seven countries has sparked widespread criticism from several quarters, including the business world. Not only does it conflict fundamentally with long-standing American values, it also seriously undermines the country’s economic dynamism and its ability to harness the talent and enthusiasm of immigrant workers.

There are many reasons why people from all over the world choose to build their careers in the US. As well as the ample opportunities for work at a host of great companies, a big reason why people are drawn to the US is