Merve ERYİĞİT
Department of Statistics, Hacettepe University
Esra POLAT (espolat@hacettepe.edu.tr)
Department of Statistics, Faculty of Science, Hacettepe University, 06800, Ankara, Turkey
ABSTRACT
Data Envelopment Analysis is a non-parametric analysis method based on linear modeling. In this method, it is aimed to measure the relative efficiency of decision making units that produce homogeneous outputs by using homogeneous inputs. Many sectors affected positively or negatively by Covid-19 pandemic. In this study, the impact of the Covid-19 pandemic on the financial performance based efficiencies of companies in the information technology (IT) sector traded in Istanbul Stock Exchange (Borsa Istanbul/BIST) examined. In addition, the effect of the Covid-19 pandemic on the periodical financial performance efficiency by determining the periods with the highest and lowest average efficiency for the quarterly periods between 2019:03 and 2021:06 is investigated. As a result, due to inevitable changing situations such as pandemics affect the countries; this study will shed light on both the comparison and evaluation studies for the IT sector and similar studies for other sectors to be made in Turkey or in other countries in the future.
Keywords: Borsa Istanbul (BIST), Data Envelopment Analysis, Covid-19, Efficiency Values of Companies, Performance
JEL Classification: C61, C81, D53, D57, L25
