Intellectual capital (INCAP) emerged as a topic worthy of academic and practical investigations in the early 1990s while the research and practice of INCAP has not been popular in the hotel industry until recently. Very few measurement frameworks specified the value of INCAP in the hospitality...

Considerable intellectual progress has been made to the development of various semiparametric varying-coefficient models over the past ten to fifteen years. An important advantage of these models is that they avoid much of the curse of dimensionality problem as the nonparametric functions are...

We develop composite estimators and its large sample properties for the additive risk model with length-biased and right-censored data. We also conduct simulation studies to confirm the good finite sample performance of our methods and then give a real data example.