This paper presents a performance evaluation of European airports, based on the application both parametric and non-parametric approaches. We have evaluated 115 busiest airports in Europe according to number passengers checked-in 2018. The four inputs we used were Terminals, Runways, Boarding gates, Aircraft stands. Three variables describe outputs, namely, Passengers, Movements, Cargo. method ...

the portfolio is a perfect combination of stock or assets, which an investor buys them. the objective of the portfolio is to divide the investment risk among several shares. using non-parametric dea and dea-r methods can be of great significance in estimating portfolio. in the present paper, the efficient portfolio is estimated by using non-radial dea and dea-r models. by proposing non-radial m...

In assessing the relative efficiency of decision-maker units by classical Data Envelopment Analysis (DEA) models, the status of the data is determined from the input or output points of views. In real issues, there are some data whose statuses are debatable. Some decision making units consider them as input to achieve higher efficiency while some other decision making units consider them ...