Heavy oil is classified as unconventional resource because of its difficulty to recover in natural state, difficulties transport and marketing it. Upgrading solution the heavy has positive impact technically economically specially when it will be a competitive with conventional oils from prospective. Developing Qaiyarah field was neglected last five decades, main reason due low quality crude re...

Abstract This article develops a new model of business cycles. The is economical in that it solved with an aggregate demand–aggregate supply diagram, and the effects shocks policies are obtained by comparative statics. builds on two unconventional assumptions. First, producers consumers meet through matching function. Thus, features unemployment, which fluctuates response to demand shocks. Seco...