Nathan Nunn is an Assistant Professor of Economics at Harvard University. Professor Nunn was born in Canada, where he received his PhD from the University of Toronto in 2005. Professor Nunn’s primary research interests are in international trade, economic development, and economic history. He is an Associate editor of the Journal of International Economics and an NBER Faculty Research Fellow.

One stream of Nunn’s research focuses on the relationship between historic events and current economic performance within Africa. In “Historical Legacies: A Model Linking Africa’s Past to its Current Underdevelopment”, published in the Journal of Development Economics in 2007, Nunn develops a game-theoretic model showing how the slave trade and colonial rule could have had permanent long-term effects on economic performance. In “The Long-Term Effects of Africa’s Slave Trades” (Quarterly Journal of Economics, 2008), Nunn documents the long-term adverse economic effects of Africa’s slave trades.

A second stream of Professor Nunn’s research focuses on the importance of hold-up and incomplete contracting in international trade. He has published research showing that a country’s ability to enforce written contracts is a key determinant of comparative advantage (“Relationship-Specificity, Incomplete Contracts and the Pattern of Trade”, Quarterly Journal of Economics, 2007).

Summary of talk:

In his presentation "The Slave Trade and the Origins of Mistrust in Africa", Nathan Nunn offers an empirical investigation into the relationship between Africa's Slave Trade (1400 to 1900) and its culture of mistrust today. The project is an individual-level analysis of whether members of heavily enslaved ethnic groups in Africa display lower levels of trust today. The underlying argument posits that the slave trade created a culture of "enslave or be enslaved", where a non-trivial proportion of slaves were actually tricked and sold off into slavery by their own friends or family members. These conditions left a legacy of mistrust that has persisted to this day.

The empirical analysis relies on estimates of slave flows and records of slaves' ethnic membership. It also relies on 2003 Afrobarometer survey data to measure individual attitudes of trust toward neighbors, family members, local councilmen and co-ethnics in 17 sub-Saharan African countries. The results indicate a negative effect of Africa's slave trade on individual levels of trust: ethnic groups most affected by the slave trade are most likely to be distrusting today. The results further show that this occurs not through the effect the slave trade had on the locality in which the individual currently resides, but rather through the effect the slave trade had on that individual's ethnic ancestors.

» Paper: "The Slave Trade and the Origins of Mistrust in Africa" (pdf)

This daylong discussion, attended by roughly 40 scholars and practitioners from universities, labor organizations, corporations and NGOs, focused on how companies can move beyond monitoring and compliance to build socially and environmentally responsible supply chains.

At two workshops in 2008, the group discussed a few key strategies, leading Josh Cohen and Rick Locke to seek funding for a new research center. These included:

1. Scaling up codes of conduct
2. Reinvigorating national regulation
3. Combining labor standards and trade rules

The event on January 29th covered the following topics, summarized below:

Panel 1.   Recent research on ethical consumption

• Michael Hiscox, Jens Hainmueller, Sandra Sequeira (Harvard)
• Margeret Levi (University of Washington)
• Yotam Margalit (Stanford University)
• Dara O’Rourke (GoodGuide, UC Berkeley)

Selected findings:

• The Average “Fair Trade” effect is 9%, based on a coffee experiment with Whole  Foods
• Consumers are willing to pay some premium for social labels (7.3-13.1%)
• Berkeley: Personal health and wellness and the environment outrank labor concerns for consumers of products listed on GoodGuide.com

Panel  2.   Best practices in the environmental area that might be carried over to labor/trade

• Edgar Blanco (MIT)
• Bonnie Nixon (HP)
• Erica Plambeck (Stanford)
• Charles Sabel (Columbia)

Selected discussion points:

•  Compliance-based regulation no longer works; there are new roles for NGOs, government, and public-private partnerships in creating incentives for suppliers
• Suppliers care most about volume and length of contracts; since not everyone is Wal-Mart, buyers may need to come together to encourage ethical behavior

Panel 3.   New regulatory strategies in labor markets in emerging economies

• Salo Vinocur Coslovsky, Massachusetts Institute of Technology
• Mary Gallagher, University of Michigan
• Andrew Schrank, University of New Mexico
• Rick Locke, Massachusetts Institute of Technology

Selected discussion points:

• Evidence from Brazil shows that law enforcement operates in parallel with private auditors in monitoring suppliers, becoming “shock troops of sustainable development”; some issues require state regulation
• There may be trade-offs between bureaucratic efficiency and equity in a compliance system, as in the Dominican Republic
• In some cases, the state’s role is to delegate work so private sector can police more effectively

Panel 4.   Looking Forward

• Caitlin Morris (Nike)
• Marcela Manubens (Phillips-Van Heusen)

Selected discussion points:

• Key issue is how to tie labor and environmental agenda together; for some companies, environmentalism is self-interest—materials like bamboo often resonate with designers. But who makes the bamboo shirt is less of an issue. One option is to derive cost savings from environmental policies and direct that money to programs for workers.
• Big question: in an entry-level sector, how far across the spectrum from minimum or entry-level to living wage do we go? How do we measure progress? Is it a 3% increase in labor value /product each year?
• Another issue in need of further exploration: where upgrading doesn’t reach lower down in the supply chain. There’s got to be a virtuous circle where technical upgrading and labor issues can be joined
• Environmental issues have won the battle because regulatory environment incents companies to care about it, and consumers care, too—it’s become hip. Maybe what’s needed is to institutionalize the “triple bottom line” approach to business such that companies with good labor policies get tax breaks.

» Notes and Presentations (password protected)

Co-sponsored with the Global Supply Chain Management Forum

A new moral, ethical, and legal framework is needed for international human rights law. Never in human history has there been such an elaborate international system for human rights, yet from massive disasters, such as the Darfur genocide, to everyday tragedies, such as female genital mutilation, human rights abuses continue at an alarming rate. As the world population increases and global trade brings new wealth as well as new problems, international law can and should respond better to those who live in fear of violence, neglect, or harm.

Modern critiques global human rights fall into three categories: sovereignty, culture, and civil society. These are not new problems, but have long been debated as part of the legal philosophical tradition. Taking lessons from tradition and recasting them in contemporary light, Helen Stacy proposes new approaches to fill the gaps in current approaches: relational sovereignty, reciprocal adjudication, and regional human rights. She forcefully argues that law and courts must play a vital role in forging a better human rights vision in the future.