Efficiency and productivity analysis of deregulated telecommunications industries: a comparative study of the cases of Canada and Nigeria

PhD Thesis

Oredegbe, Abayomi A.. 2016. Efficiency and productivity analysis of deregulated telecommunications industries: a comparative study of the cases of Canada and Nigeria. PhD Thesis Doctor of Philosophy. University of Southern Queensland. https://doi.org/10.26192/5bf4e90fb17a2

Efficiency and productivity analysis of deregulated telecommunications industries: a comparative study of the cases of Canada and Nigeria

TypePhD Thesis
AuthorOredegbe, Abayomi A.
SupervisorZhang, Shane
Khanam, Rasheda
Institution of OriginUniversity of Southern Queensland
Qualification NameDoctor of Philosophy
Number of Pages331
Digital Object Identifier (DOI)https://doi.org/10.26192/5bf4e90fb17a2

Following telecommunications industry deregulation in United Kingdom and the introduction of competition in the United States of America's long distance telecommunications services in the 1980s, telecommunications industries in other developed and developing countries have been deregulated. Contributing to the deregulation are the influences of globalization, technological advancement, fiscal policy restraint, lending institutions' requirements, regulatory costs curtailment and the desire for improved performance. However, the benefits of deregulation remain uncertain. The motivation for this research is to investigate the efficiency and productivity performance of telecommunications industries in deregulated environments. Comparatively analyzing the experiences of Canada and Nigeria, this research addresses two broad questions. First, how did deregulatory policies influence competitiveness in the industries in the two countres? This was addressed by: (i) investigating the forces that drove deregulation, (ii) exploring the similarities and differences in the deregulatory milieu in the two countries, and (iii) evaluating competitiveness in the industry. Second, how did the industries perform in the deregulated environments? The outcomes shed lights on the efficiency, productivity and the influence of environmental factors on efficiency performance. It also imbues the applicability of structure-conduct-performance model in the understanding of deregulatory outcomes.
The approach adopted entailed empirical analysis of the two countries in the context of 17 other telecommunications industries from High Income Countries and Middle Income Countries over a 13-year period (2001–13). The study used non-parametric Data Envelopment Analysis (DEA) and the Malmquist Productivity Index to assess the efficiency and productivity changes and a random effect (RE) panel Tobit model was used to evaluate the effect of environmental factors on efficiency performance. Furthermore, responses from industry participants were obtained to complement the DEA findings. The DEA results suggest that operating in deregulated environment improves efficiency and productivity performance; a finding validated by the views of the industry participants involved in the study. The two countries, though inefficient, showed improved technical efficiency. The productivity analysis revealed both countries experienced productivity growth but it has slowed. Also, the Mann-Whitney test showed that the two countries have comparable productivity change. The Canadian telecommunications industry experienced technological progress and efficiency improvement, but the productivity change was mainly due to efficiency improvement attained through managerial effectiveness. On the other hand, the Nigerian telecommunications industry experienced technological retardation but efficiency progression. Its productivity change was due to efficiency improvements attained through enhanced operational scale.
The investigation of the influence of environmental factors on efficiency reveals that the number of years in deregulation has an insignificant negative influence on technical and scale efficiency. However, as a quadratic term, the effect is positive but remained insignificant. Revenue per subscription positively influences technical and scale efficiencies and is statistically significant. This indicates that higher prices may result in better technical efficiency and operational scale. Industry concentration level was found to have a positive but not statistically significant effect on technical and scale efficiencies and a negative but also statistically insignificant effect on pure technical efficiency. This signifies that telecommunications industry concentration is not consequential to performance. Capital expenditure to revenue ratio has no significant influence on technical efficiency but a statistically significant negative influence on scale efficiency. This signifies that scale efficiency could be attained by optimizing capital expenditure through full capacity utilization and by avoiding infrastructure duplication. Labour productivity influences technical efficiency but has an unimportant negative effect on scale efficiency. This implies that technical efficiency could be enhanced through labour productivity improvements. Also, change in real gross domestic product per capita has a negative and insignificant effect on technical and scale efficiencies. However, as a quadratic term, it has significant positive influence on scale efficiency, suggesting that countries with higher economic growth and wealth would display better scale efficiency performance. Inflation has significant positive influence on technical and scale efficiency performance. The level of development has insignificant relationship with technical and scale efficiency scores, implying that it is not an essential determinant of performance. The interaction of labour productivity and capital intensity undermines technical efficiency, signifying that efficiency improvement through labour productivity and increased use of capital is not sufficient to neutralize efficiency loss from increased capital intensity.

KeywordsData Envelopment Analysis (DEA); deregulation; telecommunications industry
ANZSRC Field of Research 2020409999. Other engineering not elsewhere classified
Byline AffiliationsFaculty of Business, Education, Law and Arts
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Telecommunications industry efficiency: A comparative analysis of high and middle income countries
Oredegbe, Abayomi and Zhang, Yahua. 2020. "Telecommunications industry efficiency: A comparative analysis of high and middle income countries." Telecommunications Policy. 44 (5), pp. 1-11. https://doi.org/10.1016/j.telpol.2020.101958