This is a large empirical study involving an extensive statistical data base of acute inpatient treatment, DRG weights, outpatient treatment, teaching roles, and expenditures by categorical hospital and types of around 300 public hospitals in New South Wales. Research method is multi-factor, pure programming, input oriented, data envelopment analysis with subsequent response surface analysis by statistical techniques and graphical illustrations. This study develops an analysis of modernisation of public telecommunication services in some countries by applying DEA models and their extensions. This international evaluation may serve as a basis for comparing the distinct degrees of modernisation already achieved, as well as understanding the main trends regarding the future of telecommunications operators within increasingly competitive environments. The factors' selection is obtained from the recent indicators of International Telecommunication Union, and their classification as an input or an output is outlined and it is related to the application objectives.
Some attention is paid to nondiscretionary and categorical variables.
A comparison of these models' results is made, taking into account the countries' scale of operation. Finally, ranking with DEA is taken into consideration and a method is provided for it, which permits the ranking of countries to be sorted by a performance measure of modernisation of their telecommunication services. The presenter s aim is to show how different regulatory frameworks imposed on UK airports influence their efficiencies. The results of the first analysis indicate that privatised airports are more efficient than local authority airports. This may be due to the different objectives of and constraints on each type of manager.