Papers by Filadelfo de Mateo
PROMET - Traffic&Transportation
In many countries, bus operators are private companies whose service has been leased by governmen... more In many countries, bus operators are private companies whose service has been leased by government agencies. These agencies develop service compliance indices or measures to keep track of factors such as passenger satisfaction, frequency, and regularity but do not necessarily include the objectives of the operators in the assessment. In this paper, we used slack-based measure data envelopment analysis (SBM) to investigate whether it is possible for a bus operator to be efficient (from a private perspective) and match required standards of frequency and regularity. In doing so, data collected from two major bus operators in Santiago, Chile has been used comprising 99 services. The results show that when private objectives, namely revenues, are included in the analysis, bus operators do not necessarily seek to improve the regularity of their service. Moreover, it was found that some bus services are on the efficient frontier while keeping low performance measure standards. Using the s...
Optimal Paths And Costs Of Adjustment In Dynamic DEA Models: With Application To Chilean Department Stores
Annals of Operations Research, 2006
In this paper we propose a range of dynamic data envelopment analysis (DEA) models which allow in... more In this paper we propose a range of dynamic data envelopment analysis (DEA) models which allow information on costs of adjustment to be incorporated into the DEA framework. We first specify a basic dynamic DEA model predicated on a number of simplifying assumptions. We then outline a number of extensions to this model to accommodate asymmetric adjustment costs, non-static output
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Papers by Filadelfo de Mateo