Diversity of activity, Strategies to Promote Energy Productivity in Agriculture (Causality analytical approaches Toda - Yamamoto and Bounds test)

Nowadays, continuous growth of developed countries and the rapid growth in developing countries is owing to use of energy. But in recent decades the need to move towards sustainable development, public has thinks to increasing energy productivity to upgrade the production by the specific energy consumption. The other hand, researchers believe that the move to a diversified production system and Economies of Scope due to its, can increase the productivity of inputs. Hence, the present study has been checke the causal relationship between energy productivity and diversity of activities in the agricultural sector by the Toda-Yamamoto causality and Bounds tests. The results indicate the existence of a unidirectional causal relationship from energy productivity to diversity of activities. So, due to the positive influence of energy productivity from diversity of agricultural activities, suggested that government rather than various supportion policies from specific products, encourage agricultural system to more diversification.