A New Mixed FLQ-RAS Method for Estimation of the Regional Input-Output Table (RIOT): Case Study of Gilan Province

In this article, we show that the application of LQ methods for estimation of RIOT in Iran requires two types of residuals. To tackle with this problem, a new mixed FLQ-RAS method is proposed. This method maintains the official data of regional accounts that has been provided by the Statistical Centre of Iran and therefore, the sectoral export is used as a residual. Domestic National, Gilan IOTs and regional accounts for the year 2002 have been used. FLQ and FLQ-RAS methods have used to estimate the RIOTs of Gilan. For the evaluation, we have used five conventional statistical methods for error measurment. The results are twofolds.The minimum adjustment is 0.9% for agriculture and the maximum adjustment is 55% for mining. Second the degree of accuracy between the two methods reveals that the proposed method outperforms than the FLQ method. The application of the proposed method has four advantages in Iran: one- flexibility for covering more sectors, two- extension to other regions, three- its complete consistency with the basic data of the country and four- its flexibility in considering exogenous or superior data at the regional level.