id author title date pages extension mime words sentences flesch summary cache txt work_roegnvfjbbenxe736smwwcshaq Nancy Cartwright Models: The Blueprints for Laws 1997 13 .pdf application/pdf 5004 445 68 We do not have laws for everything occurring in the world, but only for those situations where what happens in nature is represented by a model: models are blueprints for nomological machines, which in turn model for a chance set-up or a probability-generating machine. search models in which the number of jobs available depends on workers' skills and search intensities, Pissarides' is the first to derive results ft = the probability of a worker getting a job at period t 'Short-term unemployed' refers to 'young' workers just entering the job market at a given time There is a probability that a job meets a worker at the beginning of expected profit depends on the probability of a job meeting a shortand a long-term unemployed worker, which in turn depends on the probability of a job being filled by a short(or long-) term worker, ./cache/work_roegnvfjbbenxe736smwwcshaq.pdf ./txt/work_roegnvfjbbenxe736smwwcshaq.txt