摘要
We investigate long distance telephone calling patterns using billing information and demographic data for a large cross-section of residential households. The joint distribution of the number and duration of toll calls is estimated using a non-parametric kernel model, a semi-parametric Cox proportional hazard model, and a fully parametric Poisson–Weibull model. Particular attention is paid to the estimation and analysis of call duration hazard functions. We find that call duration is quite inelastic with respect to price, and that while evening and night/weekend rate calls share vary similar duration characteristics, they differ substantially from peak rate calls.
摘要译文
我们调查长途电话呼叫模式，使用收费信息和人口统计数据为大型跨区住宅家庭。使用非参数核模型，半参数Cox比例风险模型和全参数泊松 - 威布尔模型来估计长途电话的数量和持续时间的联合分布。特别关注呼叫持续时间危险函数的估计和分析。我们发现通话时间在价格方面是非常缺乏弹性的，而夜间和夜间/周末的通话费用份额也会有相似的持续时间特征，它们与峰值通话呼叫差别很大。
ErikHeitfield[a];ArmandoLevy[b];. Parametric, semi-parametric and non-parametric models of telecommunications demand[J]. Information Economics and Policy, 2001,13(3): 311-329