6533b830fe1ef96bd129678c
RESEARCH PRODUCT
Assessing productivity changes in water companies: a comparison of the Luenberger and Luenberger-Hicks-Moorsteen productivity indicators
Ramón Sala-garridoManuel Mocholi-arceMaría Molinos-senantesubject
Productivity changeNatural resource economics0208 environmental biotechnologyGeography Planning and DevelopmentEconomics02 engineering and technology010501 environmental sciences01 natural sciencesProductivity020801 environmental engineering0105 earth and related environmental sciencesWater Science and Technologydescription
Interest in evaluating productivity changes in water companies has increased in recent years. In this paper, for the first time, we employ the Luenberger-Hicks-Moorsteen Productivity Indicator (LHMPI) to evaluate productivity changes in a sample of Chilean water companies from 2010 to 2016. Productivity change estimations obtained by both the Luenberger Productivity Indicator (LPI) and the LHMPI are compared. Moreover, both indicators were computed assuming constant and variable returns to scale technologies. The LHMPI estimates illustrate that productivity in Chilean water companies has slightly improved over the period studied due to the positive trend of outputs, whereas the inputs negatively contributed to productivity changes. Results from the empirical analysis enabled us to verify that the LHMPI and LPI (and their drivers) are statistically different. This conclusion illustrates that water regulators need to pay attention to the indicators used when assessing productivity changes in water companies.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-08-09 |