Complex sentence: In most branches of engineering and economics, decentralisation is narrowly defined as the study of markets and interfaces between parts of a system-this is most highly developed as general systems theory and neoclassical political economy.
Split into simpler sentences: In most branches of engineering and economics, decentralization is narrowly defined as the study of markets and interfaces between parts of a system. This is most highly developed as general systems theory and neoclassical political economy.