The Possibility of Ideological Bias in Structural Macroeconomic Models
研究意识形态偏见如何影响结构性宏观经济模型的设计，发现左翼经济学家倾向于报告更大的凯恩斯乘数和更平坦的菲利普斯曲线，且模型自洽性限制了参数操纵空间。
An ideologically biased expert faces trade-offs in model design. The perceived model must be autocoherent—its use by all agents delivers a self-confirming equilibrium. Policy may be influenced by manipulating the Keynesian multiplier or the Phillips curve parameters. Ideological bias may arise in a way that resembles well-known historical controversies. A larger reported Keynesian multiplier is favored by more left-wing economists, as is a flatter inflation output trade-off. Some combinations of parameters must be truthfully revealed, illustrating the tight link between parameter identification and the scope for bias that is implied by the autocoherence conditions.