A so-called “New Trade Theory” has recently challenged the orthodoxy that proclaims that unrestricted free trade is universally beneficial to all countries in all circumstances, writes Colin Teese, former deputy secretary of the Department of Trade.”First they ignore you, then they laugh at you, then they fight you, then you win.” (A saying attributed to Mahatma Gandhi.)Gandhi, in this famous saying, was talking about the political emancipation of India. But those struggling to overturn the comm…