Young, Andrew; Higgins, Matthew and Levy, Daniel (2007): Black Populations and Economic Growth: An Extreme Bounds Analysis of Mississippi County-Level Data. Unpublished.
Higgins, Matthew; Young, Andrew and Levy, Daniel (2009): Federal, State, and Local Governments: Evaluating their Separate Roles in US Growth. Unpublished.
Higgins, Matthew; Young, Andrew and Levy, Daniel (2006): Federal, State, and Local Governments: Evaluating their Separate Roles in US Growth. Unpublished.
Young, Andrew; Higgins, Matthew and Levy, Daniel (2006): Heterogeneous Convergence. Unpublished.
Higgins, Matthew; Young, Andrew and Levy, Daniel (2007): Robust Correlates of County-Level Growth in the U.S. Unpublished.
Young, Andrew; Higgins, Matthew and Levy, Daniel (2007): Sigma Convergence versus Beta Convergence: Evidence from U.S. County-Level Data. Unpublished.
Hansen, Zeynep and Higgins, Matthew (2007): The Effect of Contractual Complexity on Technology Sourcing Agreements. Unpublished.
Stuart, Graham and Higgins, Matthew (2007): The Impact of Patenting on New Product Introductions in the Pharmaceutical Industry. Unpublished.