As a result, while credit systems tend to dominate in periods of relative social peace, or across networks of trust (whether created by states or, in most periods, transnational institutions like merchant guilds or communities of faith), in periods characterized by widespread war and plunder, they tend to be replaced by precious metal. What’s more, while predatory lending goes on in every period of human history, the resulting debt crises appear to have the most damaging effects at times when money is most easily convertible into cash.
