sustainability Article The Evolution of Racehorse Clusters in the United States: Geographic Analysis and Implications for Sustainable Agricultural Development Paul D. Gottlieb 1,2, Jennifer R. Weinert 2, Elizabeth Dobis 3 and Karyn Malinowski 2,* 1 Department of Agricultural, Food and Resource Economics, Rutgers, the State University of New Jersey, 55 Dudley Rd., New Brunswick, NJ 08901, USA;
[email protected] 2 Equine Science Center, Rutgers, the State University of New Jersey, ASB II 57 US HWY 1, New Brunswick, NJ 08901, USA;
[email protected] 3 Northeast Regional Center for Rural Development, Pennsylvania State University, 207A Armsby Building, University Park, PA 16802, USA;
[email protected] * Correspondence:
[email protected]; Tel.: +1-848-932-9419 Received: 31 October 2019; Accepted: 6 January 2020; Published: 8 January 2020 Abstract: Sustainability is frequently defined as the need to place equal emphasis on three societal goals: economic prosperity, environment, and social equity. This “triple bottom line” (TBL) framework is embraced by practitioners in both corporate and government settings. Within agriculture, the horse-racing industry and its breeding component are an interesting case study for the TBL approach to local development. The sector is to some extent a “knowledge industry”, agglomerating in relatively few regions worldwide. In the USA, choices made by breeders or owners are likely affected by sudden changes in specific state policies, especially those related to gambling. Both of these unusual conditions—for agriculture at least—have been playing out against a background of national decline in the number of registered racehorse breeding stock. This study traces changes, between 1995 and 2017, in the geographic distribution of registered Thoroughbred and Standardbred stallions.