💙PRODUCTIVITY: A measure of the efficiency of a person, machine, factory, system, etc., in converting inputs into useful outputs. Productivity is computed by dividing average output per period by the total costs incurred or resources (capital, energy, material, personnel) consumed in that period. Productivity is a critical determinant of cost efficiency. http://www.businessdictionary.com/definition/productivity.html 💙EFFICIENCY: The situation in which it is impossible to generate a larger welfare total from the available resources. In other words, the situation where some people cannot be made better-off by reallocating the resources or goods, without making others worse-off. http://www.businessdictionary.com/definition/economic-efficiency.html 💙EFFECTIVENESS: The degree to which objectives are achieved and the extent to which targeted problems are solved. http://www.businessdictionary.com/definition/effectiveness.html 💙S...