Arising simultaneously with these developments were wider issues: first, in the US, an ever-widening interpretation by the courts of insurance coverage in relation to workers' compensation for asbestosis-related claims, which created a huge hole in Lloyd's loss-payment reserves, which was initially not recognised and then not acknowledged. Second, by the end of the decade, almost all of the market agreements, such as the Joint Hull Agreement, which were effectively cartels mandating minimum terms, had been abandoned under pressure of competition. Third, new specialised policies had arisen which had the effect of concentrating risk: these included "run-off" policies, under which the liability of previous underwriting years would be transferred to the current year, and "time and distance" policies, whereby reserves would be used to buy a guarantee of future income.