Dokka Venkata Satyanaraya, T., Sen Gupta, S., Talla Nobibon, F. & Zemkoho, A., 09/2017, Lancaster: Lancaster University, Department of Economics, 39 p. (Economics Working Papers Series).
Moulin, H., Ray, I. & Sen Gupta, S., 2014, Lancaster: Lancaster University, Department of Economics, 17 p. (Economics Working Paper Series; vol. 2014, no. 24).