Harvard Medical School

Instructor in Medicine at Harvard Medical School

University of Bath School of Management

Associate Professor of Finance (Asset & Risk Management) at University of Bath School of Management

National University of Singapore

NUS Institute of Systems Science

Cycle & Carriage Professor of Finance at NUS Institute of Systems Science

Professor at National University of Singapore

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Professor of Entrepreneurship at the United Arab Emirates University at -

Brookings Institution

Nonresident Distinguished Fellow - Global Economy and Development, Africa Growth Initiative at Brookings Institution

Imperial College London

Clinical Research Fellow at Imperial College London

Tenured Professor and Director, Health Administration at University of North Florida

Said Business School

Departmental Research lecturer in Enterprise and the Environment at the Smith School of Enterprise and the Environment (SSEE) and the School of Geography and the Environment at Said Business School

Harvard Medical School

Associate Professor in Surgery, Department of Surgery at Harvard Medical School

Professor Emeritus