Spline Model for Wake Effect Analysis: Characteristics of Single Wake and Its Impacts on Wind Turbine Power Generation
Hwangbo, H., A.L. Johnson, and Y. Ding, 2018. IIE Transactions 50(2):112-125.

A Production Economics Analysis for Quantifying the Efficiency of Wind Turbines
Hwangbo, H., A.L. Johnson, and Y. Ding 2017. Wind Energy 20(9): 1501-1513.

Power Curve Estimation: Functional Estimation Imposing the Regular Ultra Passum Law
Hwangbo, H., A.L. Johnson, and Y. Ding 2015. Working Paper available at SSRN.

Stochastic nonparametric approach to efficiency analysis: A unified framework
Kuosmanen, T., A.L. Johnson, and A. Saastamoinen, 2015, in J. Zhu (Eds) Handbook on Data Envelopment Analysis Vol II, Springer.

A Nonparametric Method to Estimate a Technical Change Effect on Marginal Abatement Costs of U.S. Coal Power Plants
Mekaroonreung, M. and A.L. Johnson, 2014. Energy Economics 46: 45-55.

A two-dimensional bin packing problem with size changable itmes for the production of wind turbine flanges in the open die forging industry
Lee, J., B.-I. Kim, and A.L. Johnson, 2013. IIE Transactions 45(12):1332-1344.

Estimating the Shadow Prices of SO2 and NOx for U.S. Coal Power Plants: A Convex Nonparametric Least Squares Approach
Mekaroonreung, M. and A.L. Johnson, 2012. Energy Economics 34(3): 723-732.

Estimating the Effciiency of American Petroleum Refineries Under Varying Assumptions of the Disposability of Bad Outputs
Mekaroonreung, M. and A.L. Johnson,  2010. International Journal of Energy Sector Management 4(3): 356-398.