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更多微积分学习能否改善中级微观与宏观经济学成绩？AI 解读

Using a selection bias correction model with ordered probit, we estimate how a second semester of calculus affects students' grades in intermediate economic theory. Selection bias correction is needed because similar aptitudes and interests often lead students to enroll and do well in both mathematics and economics. A sample of students enrolled in 49 classes of intermediate micro and 41 classes of intermediate macro is used to estimate the model. The results show a…

预测分歧与预测不确定性的关系：调查数据与 ARCH 模型证据AI 解读

Abstract This paper examines empirically the relationship between measures of forecast dispersion and forecast uncertainty from data on inflation expectations from the Livingston survey series and the Survey Research Center (SRC) survey series. Because the survey series do not provide probabilistic forecasts of inflation, we derive measures of inflation uncertainty by modelling the conditional variance of the inflation forecast errors from the survey series as an…

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单因子多项 Probit 模型的高效数值求积方法AI 解读

A PROBLEM OF ESTIMATION that has long confronted many economists is the difficulty of estimating the parameters of equations with limited dependent variables on cross-section time-series (i.e., panel) data. While there are widely available packaged computer programs for estimating either (a) cross-section probit and Tobit models or (b) simple permanent-transitory, random-effects panel models with continuous dependent variables, there are no available computationally feasible…