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Ratio Working Paper No. 372: Customers’ value-for-money for a regulated service across differen towners

PublikationWorking paper
Magnus Söderberg
WP 372
Ladda ner

Sammanfattning

What are the best ownership and governance arrangements for a natural monopoly facility? There are three broad approaches: (a) private ownership, coupled with arms-length public utility regulation; (b) some form of government (central, state, or local) ownership; and (c) customer or community ownership. While there is a substantial literature comparing outcomes under private and public (i.e., government) ownership, there is relatively little literature comparing private and/or government ownership with customer ownership. One of the obstacles of performance comparison is that different businesses may choose a different price-quality trade-off, making direct comparison impossible. In this study we cut through this problem by comparing customer perceptions of value-for-money. The study is based on interviews of more than 600 randomly selected electricity distribution customers in Sweden, approximately 150 in each ownership category (municipal, customer, private, and state). These distributors are subject to an identical regulatory framework. The results show that those owned directly by customers are perceived to deliver significantly more value for money than those owned by the government or by private investors. These results lend weight to the view that a well-governed customer-owned utility may lead to better outcomes than other owners.

Biggar, D., & Söderberg, M. (2024). Customers’ value-for-money for a regulated service across different owners (Ratio Working Paper No. 372). Ratio.

Detaljer

Författare

Biggar, D., & Söderberg, M. (2024). Customers’ value-for-money for a regulated service across different owners (Ratio Working Paper No. 372). Ratio.

Publiceringsår

2024

Publicerat i

Ratio Working Paper Series.

Relaterat

Magnus Söderberg
Professor

magnus.soderberg@ratio.se

ons 7 feb 2024
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Liknande innehåll

A penalization approach for estimating inefficiency in stochastic frontier panel models
Working paperPublikation
Tchatoka, F. D., Söderberg, M., Hakeem, M. A.
Ladda ner
Publiceringsår

2025

Publicerat i

University of Adelaide, School of Economics and Public Policy Working Paper.

Sammanfattning

Efficiency analysis is essential for evaluating the performance of entities that deliver essential or standardized services. The estimator proposed by Jondrow et al. (1982) is widely used in this context, but it has been criticized for several shortcomings: it tends to bias inefficiency estimates toward the mean, distorts the distribution, and misrepresents the conditional distribution of inefficiency—especially in cross-sectional data.

Zeebari et al. (2023) propose a regularization-based alternative that aligns sample and theoretical moments; however, this method is primarily designed for cross-sectional applications and does not extend naturally to panel data.

In response, this paper introduces a penalized mode estimator for unit inefficiency in panel data. The estimator accounts for heteroskedasticity in both inefficiency and idiosyncratic errors. A closed-form expression is derived, and Monte Carlo simulations demonstrate its superior performance compared to existing methods. An empirical application using data from electricity providers in Australia, Canada, and New Zealand highlights the practical advantages of the proposed approach.

Scale properties and efficient network structures in the Swedish electricity distribution market
Artikel (med peer review)Publikation
Söderberg, M., Vesterberg, M.
Ladda ner
Publiceringsår

2025

Publicerat i

Journal of Regulatory Economics

Sammanfattning

This paper examines the Swedish electricity distribution sector to highlight three key findings. First, we identify significant economies of scale among electricity distribution firms, indicating that larger firms operate more efficiently. Second, we explore alternative market structures and demonstrate that these can substantially reduce the aggregated costs of electricity distribution. Third, we use novel survey data to show that firms perceive the economic incentives for mergers to be insufficient. These findings suggest that policymakers should consider creating a regulatory environment that encourages consolidation and enhance efficiency in the sector.

Are CEOs judged on how cost efficient their firms are?
Artikel (med peer review)Publikation
Månsson, K., Qasim, M., Söderberg, M.
Ladda ner
Publiceringsår

2025

Publicerat i

Energy Economics

Sammanfattning

This paper investigates whether executive boards consider firm-specific inefficiencies when they change CEOs in the Swedish electricity distribution sector. Firm-level inefficiencies are calculated using data from all Swedish electricity distributors from 2001 to 2022 and a data envelopment analysis (DEA) approach.

DEA has advantages over standard financial key performance indicators since it controls for heterogeneity in inputs and outputs. It is also frequently employed by energy regulators to calculate relative cost inefficiencies.

Our baseline approach uses a multilevel model and investigates the relationship between inefficiency and CEO between-effects. This analysis shows that 9–15 % of the variation in inefficiency can be attributed to the CEO effect.

The second modeling approach quantifies the CEO effect using a synthetic difference-in-differences approach, focusing on firms that have changed CEOs. The results reveal that new CEOs reduce cost inefficiency more when they succeed CEOs who were forced to leave.

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