چکیده:
Water is an essential goods for household and also an important input or intermediate product for firms. The value of water in production can be attributed to its ability to create goods and services. Yazd province is one of the industrial provinces as well as one of the low water provinces of the country. Therefore, the present study investigates water consumption in Yazd province industries during the period 1995-2015. While the value added of industry has grown on average about 9 percent annually, water consumption is increased approximately 29 percent that reflecting inadequate water consumption and management. Production function estimated using panel data regression. The findings show that the value of marginal product of water in Yazd province industries is much higher than the price paid. First the industry sector receives a rent from the low price of water, and second, the problem of water-intensive industry development and the improper management of water resources can be explained.
خلاصه ماشینی:
Estimating the production function using panel data regression shows that the value of the final production of water in the industry of Yazd province is much higher than the price paid.
Based on this, the present research examines the status of the province's industries in terms of water consumption and also estimates the value of the final production of water in the industrial sector of Yazd province.
Nahman and Lange (2012) determined the economic value of water in the South African industry using production function estimation.
Piri and Heidari (2018) addressed the estimation of the economic value of agricultural water using the production function method.
Based on the research of Nahaman and Lange (2012), Ko and Yu (2012), Tahamipour (2017), Shirani Fakhr (2017), Pilevari and Rahmati (2016), and Abbasinzhad and Wafi Najjar (2004), the Cobb-Douglas production function, which is the production function intended for this research, is presented as follows: (Refer to page image) Accordingly, the dependent variable of the research is the natural logarithm of value added (v) in millions of Rials, and the main explanatory variable of the research is the natural logarithm of water consumed (w) in cubic meters.
Furthermore, based on the results of estimating the production function using panel data regression for the period 1374-1394, it was determined that the added value created by water, or the same final production value of water in the industry of Yazd province, is on average 207,000 Rials.
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