Accounting is about systems with parallel processes.

"Entrepreneurs assemble resources including innovations, finance and business acumen in an effort to transform innovations into economic goods." Things often involved in this discipline are risk, reward, transformation, growth, failure, and learning curves. Management of an organization's human capital or employees.

Accounting is about systems with parallel processes.Organizational behaviour "is the study and application of knowledge about how people, individuals, and groups act in organizations." Therefore, it is most often talked about in terms of systems methodology.

Economics is all about curves: supply vs. demand, elasticity, inelasticity. It is concerned with leadership and management as a whole rather than the management of a part or an individual. Therefore, it is usually from a holistic or, in the case of a business itself, the executive point of view.