THE government should study whether talk of amending or discarding the 1987 Constitution undermine efforts to draw foreign investments to the Philippines. Many people, including prospective investors, have criticized the country for changing or even reversing policies, often every six years when a new government starts its term. Policymakers might want to look at countries with more economic restrictions than the Philippines, like China and Vietnam, and how they manage to lure more foreign direct investments than most markets in the region.