Efficiency evaluation of hotel chains: a Spanish case study.
Yaguo Deng,
Helena Veiga,
Michael P. Wiper
Investigaciones Economicas,
vol. 10, 2019, p. 115-139.
Bayesian Estimation of Inefficiency Heterogeneity in Stochastic Frontier Models
Jorge E. Galan,
Helena Veiga,
Michael P. Wiper
Journal Of Productivity Analysis,
vol. 42, 2014, p. 85-101.