Exchanging Obligations: Accounting for All Forms of Capital

Economics and engineering have much in common since both are concerned with making decisions to act, based on evidence from many sources including science. An analysis of financial trading an engineering-systems perspective leads a theory obligations as means capturing natural, social human capital. The treatment is analogy between gravitational electromagnetic fields forces interactions. ‘obligation’ defined underived unit ‘stuff’ analogous ‘mass’ or ‘charge’ field interacting processes. Identifying the generated will help create new policy practical interventions. These should be designed (as engineers’ design) systems maximise net worth that includes wide set natural assets, such biodiversity, air quality reduced inequality. JEL: Q50, Q01, E00, E60, O11, O14, C60