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Amershi, A.H. and Hughes, J.S. (1989) Multiple Signals, Statistical Sufficiency, and Pareto Orderings of Best Agency Contracts. The RAND Journal of Economics, 20, 102-112.
https://doi.org/10.2307/2555654

has been cited by the following article:

• TITLE: Statistically Sufficient Aggregation of Performance Measures under a Normal Distribution

  AUTHORS: Junwook Yoo

  KEYWORDS: Aggregation, Performance Measures, Multiple Tasks, Sufficiency

  JOURNAL NAME: Theoretical Economics Letters, Vol.9 No.7, September 17, 2019

  ABSTRACT: This study analyzes the minimum dimension of statistically sufficient aggregation when performance measures are joint-normally distributed. Statistically sufficient aggregates incur no loss of information during the aggregation process and provide robustness to performance evaluation systems. This study shows that there is no one-dimensional statistically sufficient aggregate in a multi-task setting.