Debates over the relationship between trade openness and growth have been going on for around 160 years. A key aspect of that debate is how important growth is for poor countries as they strive to catch up with the best-of-the best in a competitive world. For openness to succeed, you must first put in place ports, roads and other building blocks for prosperity, and you need well functioning bureaucracy to help build the foundation for a strong trade sector. Passionate free-trader Arvind Panagariya , Columbia University Economics Professor and Jagdish Bhagwati Professor of Indian Political Economy, spoke eloquently about this at his February 16 Development Economics (DEC) Lecture at the World Bank. His research has entailed cross-country case studies of what he terms ‘debacles’ and ‘successes’ in Asia, Africa and beyond. On the one hand, Panagariya admitted that free trade is no panacea to overcome stagnation and he acknowledged that trade liberalization has failed to catalyze and sustain growth in many instances. On the other, he argued that there are many more examples of countries failing to stimulate growth through protectionism. Panagariya expressed skepticism about industrial policy, but cautioned that its presence cannot prove either the beneficial or harmful impact of openness on growth. You can watch the interview with Professor Panagariya here.