Yield and profitability levels in sugarcane crops demonstrate the importance of agricultural practices adopted, especially for soil preparation planting systems. This study evaluated costs involved 40 alternative methods establishment resulting from combination eight systems five options, followed by an assessment economic viability production suppliers sugar mills. Data were collected 31 mills...

Renewable energy sources and sustainability have been attracting increased focus development worldwide. Qatar is no exception, as it has ambitious plans to deploy renewable on a mass scale. may also investigate initiating permitting the deployment of rooftop photovoltaic (PV) systems for residential households. Therefore, research gap introduced regarding system design, grid compatibility, econ...

Viability theory is the study of dynamical systems that asks “what is the set of initial conditions that generate evolutions, which obey the laws of motion of a system plus other constraints, for the length of the evolution”. We apply viability theory to Judd’s (JPE, 1987) dynamic tax model to identify which economic states are viable, in that the application of annually constrained tax-rate ad...