Commands for Testing Conditional Moment Inequalities and Equalities

Abstract

In this article, we present two commands (cmi_test and cmi_interval) to implement the testing and inference methods for conditional moment inequality or equality models proposed in Andrews and Shi (2013, Econometrica 81: 609–666). The cmi_test command tests the validity of a finite number of conditional moment equalities or inequalities. This test returns the value of the test statistic, the critical values at significance levels 1%, 5%, and 10%, and the p-value. The cmi_interval command returns the confidence interval for a one-dimensional parameter defined by intersection bounds. We obtain this confidence interval by inverting cmi_test. All procedures implemented are uniformly asymptotically valid under appropriate conditions (specified in Andrews and Shi [2013]).