The Wharton School

Miller-Sherrerd Professor at The Wharton School

Kellogg School of Management

John and Norma Darling Distinguished Professor in Financial Accounting at Kellogg School of Management

Harvard Business School

Senior Fellow at Harvard Business School

The Wharton School

Associate Professor of Operations, Information and Decisions at The Wharton School

Cranfield School of Management

Emeritus Professor of Marketing & Logistics at Cranfield School of Management

Woodrow Wilson School of Public and International Affairs

Professor of Politics and Public Affairs at Woodrow Wilson School of Public and International Affairs

The Wharton School

Associate Professor, Operations, Information, and Decisions at The Wharton School

GIBS Business School

Harvard Business School

George F. Baker Professor of Administration Dean of the Faculty at Harvard Business School

The Wharton School

Professor of Statistics at The Wharton School

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Teaching Professor at University of Notre Dame at -