---8--- Economics - sociological and mathematical economics.
Economics is a highly mathematical subject, with its basis in the social sciences. Macro and micro-econometrics deals with quantitative economics in various size contexts. Fundamentally, it deals with the production, distribution and consumption of goods/resources/services (ultimately reducible to: matter and energy, and the changes these undergo in space and in time). Mathematical economics has contributed hugely not just to sociology, politics, finance, and business management; but also to physics, chemistry, biological systems (neuroscience, immunology, epidemiology, etc), linguistics, etc. --- and the latter here is not in terms of capitalising/monetising these industries of ideas, but rather answering questions like: "How can stochastic economic Nash-Chomskian models help us understand the way white blood cells and antibodies are generated & propagated within a closed circulatory system?". Economics can be used to generate cost & policy-optimization functions that predict the strategic behaviour of self-organising agents within a system, whether the agents are conscious or non-sentient.
Some videos from external sources:
"Applied Economics - 2014 College of Agriculture and Applied Sciences" by Utah State University College of Agriculture and Applied Sciences
http://youtube.com/watch?v=gCTSxaw7ajk
"Applying behavioral economics to real-world challenges: Kelly Peters at TEDxUtrecht" by TEDx Talks
http://youtube.com/watch?v=0rLb0pGZzOw
"UW Master's in Computational Finance and Risk Management" by UWContinuingEd
http://youtube.com/watch?v=ES27uNmE4Kk
*** More material coming soon... ***