An investigation on effective factors on total productivity of water and wastewater industry using multi-criteria decision-making approach (MCDM) (water and Wastewater Company of West Azerbaijan in Iran)

Nowadays, labor relations, production, and resource constraint become complicated, and achieving growth in organizations by enhancing productivity accounted as most important goals of countries, therefore productivity improvement activities depend on organizations. The aim of this research is to evaluate and assess total productivity (efficiency + effectiveness) in water and Wastewater Company of West Azerbaijan estate in Iran during a period from 2005 to 2017. Effectiveness assessed by questionnaire tool using Chi-squared test and Efficiency measured and assessed by a variety of expenses, then they prioritized and weighted using Fuzzy AHP model. Finally, by combining these two indicators, total productivity measured. Results showed that between extents of effectiveness, the significance of test in provided services, reducing unwanted results and negative effects, level of knowledge and improvement and promotion of the company was more than 0.05, therefore zero assumption based on independence of these dimensions from gender accepted. Also, significance for dimensions of application of information technology and perception and satisfaction of the customer was 0.001 and 0.018 correspondingly, which was less than 0.05. This indicates a Relation between these two dimensions and gender of staff. In ranking factors affect efficiency, water costs (0.146) and raw material costs (0.145) variables were prioritized. Over the course, productivity had a lot of changeability with an average of 58 units, the reason of which was efficiency reduction in energy and capital; however labor efficiency and effectiveness indicators had a better status than other indicators and had an improving trend.

Author(s): Khosro Alinejad, Rahim Dabbagh, Nasir haghkish

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