water resources management in the harirud river basin based on game theory

today, limitations of water availability besides common rights between countries on transboundary rivers causes a competition among them for more water using. usually, stakeholders prefer to overuse from their water rights because of unreliability, risk aversion and short term approaches. iran, afghanistan and turkmenistan as common congruities on harirud always try to maximize their benefits from the river. here, this research likes to map the roads of hydro diplomacy amongst the common countries and show the best future moving pace for all of them according the game theory. results show that the best approach is full cooperation between the countries and establishing water narket.