State-Level Capital and Investment: Refinements and Update


El-Shagi, Makram / Steven J. Yamarik



This paper presents updated estimates for state‐level private capital and investment for 1950–2015. We improve upon the procedure of Garofalo and Yamarik (2002) and Yamarik (2013) using quantity measures to apportion the mining capital stock and a geometric pattern of depreciation to derive investment data. We provide a brief overview of our new estimates, discuss their reliability, and present the website where the data are posted and updated annually.


El-Shagi, M. / Yamarik, S.: State-Level Capital and Investment: Refinements and Update, Growth and Change, A Journal of Urban and Regional Policy, Vol. 50(4), December 2019, pp. 1411-1422

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