Ragnar Frisch on various occasions claimed that he had invented input-output analysis in a 1934 paper titled “Circulation planning”. Although prominently published in Econometrica, Frisch’s contribution has hardly been discussed in the input-output literature. Frisch’s paper was an attempt to explain the incapsulating phenomena of economic depressions and thus arose from a different motivation ...

The aqueous extract of Joazeiro stem bark (EJSB) and its high molecular weight fraction (HMWF) were examined as potential corrosion inhibitors mild steel in 1 mol L?1 hydrochloric acid media, using weight-loss measurements, potentiodynamic polarization curves an electrochemical impedance spectroscopy (EIS).Varying the concentration from 100 to 800 mg L?1, results show increase anticorrosive eff...

Burnt clay brick is one of the oldest and most widely used construction materials. The production burnt bricks with various waste materials can help reduce environmental hazards improve performance at low manufacturing costs, thereby leading towards more sustainable construction. This research aimed to evaluate effect using marble powder (WMP) in varying percentages, i.e., 0, 3, 6, 9, 12, 15%, ...

Purpose- The aim of the study is to measure efficiency real estate investment trusts traded on BIST with data envelopment analysis and Malmquist total factor productivity index. Efficiency were measured using Data Envelopment Analysis approach, both whose application fields have grown recently. Methodology- index used analyze changes in 20 operating 2019–2020–2021, as well reasons for these cha...

the aim this research is the diagnosis of production chains in oil’s regions of iran. for this reason, by using, input-output table for oil’s regions of iran,linkages and production chains are identified. the results of research indicate that although oil and natural gas sectors contain 50 percent of region’s output, but it is not a leading sector. in contrast, manufacturing of species of machi...

One of the economists’ missions is to predict the behavioral responses of consumers or firms on the assumption that optimizing continues. Once this capability is developed, economists try to manage “today” to optimize future economic return of the inputs. Techniques to predict future performance vary from an educated guess based on an appropriate analogy to very complex analytical and numerical...