Incentives in regulatory DEA models with discretionary outputs: The case of Danish water regulation
Research output: Working paper › Research
Standard
Incentives in regulatory DEA models with discretionary outputs : The case of Danish water regulation. / Heesche, Emil; Bogetoft, Peter.
Department of Food and Resource Economics, University of Copenhagen, 2021.Research output: Working paper › Research
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - UNPB
T1 - Incentives in regulatory DEA models with discretionary outputs
T2 - The case of Danish water regulation
AU - Heesche, Emil
AU - Bogetoft, Peter
PY - 2021
Y1 - 2021
N2 - Data Envelopment Analysis (DEA) based cost norms have attractive properties in the regulation of natural monopolies. However, they are also sensitive to the choice of cost drivers. When some of the cost drivers are discretionary, this may lead to suboptimal incentives. When a regulated firm compares the marginal change in its cost norm with its marginal cost of changing the discretionary output, the gains from adjusting the output will be very context specific. It is therefore unlikely that the regulation will induce socially optimal output levels. In this paper, we analytically and numerically examine the impacts of including a discretionary quality indicator in the benchmarking model used to regulate Danish water firms. We show that the eight-year catch-up period allowed in this regulation gives strong incentives to reduce costs since the firms can keep possible cost reductions for several years before the cost norm fully internalizes the cost reduction potentials. On the other hand, this scheme also provides very weak quality incentives since it takes eight years before the extra cost of increasing quality is fully internalized in the cost norm.
AB - Data Envelopment Analysis (DEA) based cost norms have attractive properties in the regulation of natural monopolies. However, they are also sensitive to the choice of cost drivers. When some of the cost drivers are discretionary, this may lead to suboptimal incentives. When a regulated firm compares the marginal change in its cost norm with its marginal cost of changing the discretionary output, the gains from adjusting the output will be very context specific. It is therefore unlikely that the regulation will induce socially optimal output levels. In this paper, we analytically and numerically examine the impacts of including a discretionary quality indicator in the benchmarking model used to regulate Danish water firms. We show that the eight-year catch-up period allowed in this regulation gives strong incentives to reduce costs since the firms can keep possible cost reductions for several years before the cost norm fully internalizes the cost reduction potentials. On the other hand, this scheme also provides very weak quality incentives since it takes eight years before the extra cost of increasing quality is fully internalized in the cost norm.
M3 - Working paper
T3 - IFRO Working Paper
BT - Incentives in regulatory DEA models with discretionary outputs
PB - Department of Food and Resource Economics, University of Copenhagen
ER -
ID: 262847363