An app for comparative case-studies using synthetic matching.

A common problem when doing regional comparisons is that treatments are usually only implemented in one region, which makes analysis using traditional statistical methods impossible. In order to solve the problem, methods for comparative case studies have been developed (Abadie and Gardeazabal, 2003; Abadie, Diamond, and Hainmueller 2010; 2015), but these methods are still in their early stages of development, and are not readily available in any of the most widely used statistical programmes.

As part of a project financed by the Swedish Retail and Wholesale Council, we have therefore developed a simple to use web-application for synthetic matching. The app supports data in several common formats, and we also provide a detailed user manual where we utilize IKEA’s establishment in Haparanda as an example of how the app can be used.

Niklas Rudholm, Yujiao Li and Kenneth Carling

Link to the app here.

For more information, see also:

Abadie, A. and Gardeazabal, J. (2003), The Economics of Conflict: A Case Study of the Basque Country, American Economic Review, 93(1), 113-132.

Abadie, A., Diamond, A. and Hainmueller, J. (2010), Synthetic Control Methods for Comparative Case Studies: Estimating the Effect of California’s Tobacco Control Program, Journal of the American Statistical Association, 105(490), 493-505.

Abadie, A., Diamond, A. and Hainmueller, J. (2015), Comparative Politics and the Synthetic Control Method, Journal of the American Statistical Association, 59(2), 495-510.

Rudholm, N., Li, Y., and Carling, K. (2018) How Does Big-Box Entry Affect Labor Productivity in Durable Goods Retailing? A Synthetic Control Approach. Link here.

Rudholm, N. (2018) Handeln som tillväxtmotor: Vilka regionala spridningseffekter har en ökad handel? Link here.