Inverse Probability of Censoring Weighted U‐statistics for Right‐Censored Data with an Application to Testing Hypotheses

Abstract. A right‐censored version of a U ‐statistic with a kernel of degree m 1 is introduced by the principle of a mean preserving reweighting scheme which is also applicable when the dependence between failure times and the censoring variable is explainable through observable covariates. Its asymptotic normality and an expression of its standard error are obtained through a martingale argument. We study the performances of our U ‐statistic by simulation and compare them with theoretical results. A doubly robust version of this reweighted U ‐statistic is also introduced to gain efficiency under correct models while preserving consistency in the face of model mis‐specifications. Using a Kendall's kernel, we obtain a test statistic for testing homogeneity of failure times for multiple failure causes in a multiple decrement model. The performance of the proposed test is studied through simulations. Its usefulness is also illustrated by applying it to a real data set on graft‐versus‐host‐disease.     

SPATIAL COMPETITION AND THE PRICE OF COLLEGE

This article provides the first evidence that universities compete directly on price, and that the market for students depends on the proximity of competitors. Exploiting detailed data from private U.S. universities, price competition is tested by introducing geographic proximity into a spatial-autoregressive tuition model. Standard spatial models show that list and net tuition are inversely related to distance between institutions, consistent with price competition in higher education. An extension to the spatial-econometrics literature relaxes a constraint that estimated spatial relationships are common across all observations, implying that spatial effects differ across qualitative classes of institutions . ( JEL C21, I2, L11)     

LABOR-MARKET CONSEQUENCES OF POOR ATTITUDE AND LOW SELF-ESTEEM IN YOUTH

Using longitudinal data on a cohort of high-school graduates, I show that youth who reveal poor attitude and self-esteem subsequently attain fewer years of postsecondary education relative to their high school cohort, are less likely to be employed 14 years following high school and, where working for pay, realize lower earnings. Furthermore, I find evidence that poor attitude and self-esteem in high school are significant predictors of structural outcomes, such as the degree of supervision under which individuals subsequently work, job characteristics, and on-the-job activities. These relationships suggest that real economic consequence exist in fostering positive attitude and self-esteem in youth. (JEL J13 , J20 , J30 )     

The Poll as a News Event in the 1980 Presidential Campaign

Public opinion polls made up 15 percent of the news events coveredduring the 1980 presidential election campaign, but news storiesgenerated by polls were no more likely to receive better playin the 50 newspapers studied than other stories about the campaign.Horserace polls were popular with editors during the last twoweeks of the campaign.     

Associations, Modernity and the Insider-citizens of a Victorian Highwheel Bicycle Club

Abstract  The creation of a club, the recruitment of new members, and the subsequent pursuit of an association's goals by its members present a succession of constitutive acts designed to advance a particular vision of citizenship. That vision may sometimes sit comfortably within the established state order, but quite often the activities of clubs are viewed by the state with suspicion, and may even be deemed subversive. The rights and obligations of an association's members serve as a blueprint for the form of citizenship pursued, and they participate in the genealogy of citizenship through their efforts to construct particular forms of civic society. By requiring a formal act of membership, all associations are to a degree exclusionary, thus bestowing power and influence on club members. Non-members are normally viewed as outsiders or as others , and members who fail to respect a club's constitution may be dropped from the insider-citizenship it represents. The Montreal Bicycle Club (MBC), formed in 1878, presents an illuminating example of how associations engage in acts of citizenship with its codes of conduct and hierarchies. Its members practiced a version of technological citizenship. MBC members asserted rights of use of the road in fierce competition with other road users, exerted political power through the elite Anglo circles of Montreal, and advocated the virtues of modern technology. Their highwheel bicycles were among the most visible modern artifacts on the streets. They were the first citizens to "go out for a spin", and there was a distinctive spatiality to many of their riding activities. They present a category of modern citizens whose purpose was to construct a technologically advanced, but highly structured society according to their masculinist vision.