Formulating wald tests of the restrictions implied by the rational expectations hypothesis
理性预期假说约束的 Wald 检验构造AI 解读 ↓
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理性预期假说约束的 Wald 检验构造AI 解读 ↓
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Abstract In this paper, we examine the small sample properties of alternative formulations of Wald tests of non‐linear restrictions implied by the rational expectations hypothesis. A Monte Carlo analysis is presented as well as an example using Canadian aggregate time series data. The evidence indicates that Wald test results are extremely sensitive in small samples to the way in which the non‐linear restrictions in such models are parameterized, with a multiplicative form yielding tests of most accurate size. Least squares degrees of freedom adjustments also improve the sample performance of the tests.