Dilemmas of an Economic Theorist
讨论经济理论家面临的四个困境：荒谬结论、证据回应、无模型规律性和相关性，帮助读者理解经济模型的局限与价值。
What on earth are economic theorists like me trying to accomplish? This paper discusses four dilemmas encountered by an economic theorist: The dilemma of absurd conclusions: Should we abandon a model if it produces absurd conclusions or should we regard a model as a very limited set of assumptions that will inevitably fail in some contexts? The dilemma of responding to evidence: Should our models be judged according to experimental results? The dilemma of modelless regularities: Should models provide the hypothesis for testing or are they simply exercises in logic that have no use in identifying regularities? The dilemma of relevance:Dowehavetherighttoofferadviceortomakestatements that are intended to influence the real world?