"Sequential Screening in Semiconductor Manufacturing, II: Exploiting Spatial Dependence."

Longtin, Mark D., Lawrence M. Wein and Roy E. Welsch. Operations Research Vol. 44, No. 1 (1996): 173-195.

"Generalized Gaussian Analysis of Market Risk in Multinational Financial Markets."

Welsch, Roy E., P. Kempthorne and K. Chui. Bulletin of the International Statistical Institute Vol. 50, (1995): 209-211.

"Subroutines for Maximum Likelihood and Quasi-Likelihood Estimation of Parameters in Nonlinear Regression Models."

Bunch, David, David Gay and Roy E. Welsch. Transactions on Mathematical Software Vol. 19, No. 1 (1993): 109-130.

"Invited discussion of 'Statistical Consulting is Scholarship' by W. J. Wilson."

Welsch, Roy E. The American Statistician Vol. 46, No. 4 (1992): 302-304.

"Exploratory Statistical Analysis of Currency and Equity Market Volatility."

Welsch, Roy E., P. Kempthorne, and A. Samarov. IFSRC Working Paper N. 204-92. 1992.

"Collinearity Diagnostics: VIF's Revisited."

Roy E. Welsch, E. Newton and A. Venetoulias. In Technical Report TR-68, Cambridge, MA: December 1990.