False dichotomy alert: Improving subjective-probability estimates vs. raising awareness of systemic risk

Taleb et al. (2022) portray the superforecasting research program as a masquerade that purports to build “survival functions for tail assessments via sports-like tournaments.” But that never was the goal. The program was designed to help intelligence analysts make better probability judgments, which required posing rapidly resolvable questions. From a signal detection theory perspective, the superforecasting and Taleb et al. programs are complementary, not contradictory (a point Taleb and Tetlock (2013) recognized). The superforecasting program aims at achieving high hit rates at low cost in false-positives, whereas Taleb et al. prioritize alerting us to systemic risk, even if that entails a high false-positive rate. Proponents of each program should, however, acknowledge weaknesses in their cases. It is unclear: (a) how Taleb et al. (2022) can justify extreme error-avoidance trade-offs, without tacit probability judgments of rare, high-impact events; (b) how much superforecasting interventions can improve probability judgments of such events.     

RS码编码和译码的算法

本文针对用ＤＳＰ芯片实现ＲＳ码的编码器和译码器的要求，讨论ＲＳ码的编码和译码算法。     

中国科技创新结构如何影响杠杆率?

杠杆率水平与系统性金融风险息息相关。杠杆率的高低与科技创新结构存在着密切关系,已有文献忽略了科技创新结构对杠杆率作用机理的研究。科技创新结构如何影响杠杆率?对此问题,本文进行系统性的理论分析,并以省际面板数据为对象进行实证检验。研究表明,我国省级科技研发劳动投入比例结构,以及创新产出结构对杠杆率具有重要影响,两类创新劳动投入对于杠杆率都具有显著作用,但影响方向相反;我国省级杠杆率具有空间效应,既有共性因子,又存在异质性特征。以上发现对于现阶段降低我国系统性金融风险,特别是为从创新的角度设计、制定和完善我国有关杠杆率的金融政策提供了科学的理论指导和实证证据。