An Extension of Marshall and Olkin's Bivariate Exponential Distribution
Marshall–Olkin二元指数分布的一种扩展AI 解读 ↓
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Marshall–Olkin二元指数分布的一种扩展AI 解读 ↓
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This article extends Marshall and Olkin's bivariate exponential distribution such that it is absolutely continuous and need not be memoryless. The new marginal distribution has an increasing failure rate, and the joint distribution exhibits an aging pattern. It offers an advantage in separately identifying the shock arrival rates and their impacts. Regarding estimation of the model, both maximum likelihood and method-of-moments-type estimation are considered. The former is more efficient but computationally more demanding, whereas the latter is simpler in computation but less efficient. The trade-off between computational burden and efficiency is gauged through Monte Carlo simulations, and it turns out to be favorable for the method-of-moments-type estimation.