jackson and crawley three types of social contracts
Cultural contracts Cultural contracts suggests that mainstream and marginalized identities are in natural conflict. In order to achieve communication, individuals must decide how much of their values will be negotiated. This results in one of three contracts by the minority identity: ready-to-sign contracts (assimilating to mainstream values); quasi-completed contracts (adapting marginalized values to accommodate mainstream values); and co-completed contracts (validating both mainstream and marginalized values).[5] Most individuals are not aware that they create or sign cultural contracts.
Late Middle Ages In the late 13th and early 14th centuries, a process took place – primarily in Italy but partly also in the Empire – that historians have termed a 'commercial revolution'.[128] Among the innovations of the period were new forms of partnership and the issuing of insurance, both of which contributed to reducing the risk of commercial ventures; the bill of exchange and other forms of credit that circumvented the canonical laws for gentiles against usury, and eliminated the dangers of carrying bullion; and new forms of accounting, in particular double-entry bookkeeping, which allowed for better oversight and accuracy.[129]