A STUDY OF AUTOMOBILE INVENTORY INVESTMENT

The volatile fluctuations in automobile inventory levels are explained well by the stock-adjustment model estimated in this paper on monthly time-series data. In contrast to the findings of most previous inventory studies, fluctuations in financial inventory carrying costs (as measured by a service cost of capital) are found to influence the target auto stocks in both a statistically significant and economically important manner. Also, the speed-of-adjustment of automobile inventories to their target level is estimated to be relatively fast, about thirty percent per month.     

RACE AND HOME OWNERSHIP: IS DISCRIMINATION DISAPPEARING?

Racial differentials in home ownership rates are examined using data on households in the twenty-four largest metropolitan areas. considerable recent reduction in racial discrimination is indicatd, in contrast to the findings of a previous analysis of the St. Louis housing market. The results are maintained under a number of modifications of the model and estimation technique.     

Notes on likelihood intervals and profiling

In many applications, decisions are made on the basis of function of parameters g(θ). When the value of g(theta;) is calculated using estimated values for te parameters, its is important to have a measure of the uncertainty associated with that value of g(theta;). Likelihood ratio approaches to finding likelihood intervals for functions of parameters have been shown to be more reliable, in terms of coverage probability, than the linearization approach. Two approaches to the generalization of the profiling algorithm have been proposed in the literature to enable construction of likelihood intervals for a function of parameters (Chen and Jennrich, 1996; Bates and Watts, 1988). In this paper we show the equivalence of these two methods. We also provide and analysis of cases in which neither profiling algorithm is appropriate. For one of these cases an alternate approach is suggested Whereas generalized profiling is based on maximizing the likelihood function given a constraint on the value of g(θ), the alternative algorithm is based on optimizing g(θ) given a constraint on the value of the likelihood function.     

PAID- VERSUS DONATED-MEDIA STRATEGIES FOR PUBLIC SERVICE ANNOUNCEMENT CAMPAIGNS

Public service announcement (PSA) campaigns have traditionallyrelied on donated rather than paid advertising media. Recently,however, both government agencies and charitable or ganizationshave questioned whether donated-media strategies should be abandonedfor paid-media PSA campaigns. The present research examinesthis issue in a three-market field experiment comparing theeffectiveness of "paid versus donated" PSA cam paigns in decreasingyouthful male drinking and driving. Depen dent variables include(1) self-reports of behaviors from sample surveys and (2) officialcounts of incapacitating and fatal highway accidents. Resultsshow that both campaigns were equally effec tive and both werecost efficient. Thus, in light of these results, it is recommendedthat social marketers not abandon donated-media PSA campaignsfor paid-media PSA campaigns.     

Manaagement practices and employee attitudes: a longitudinal study spanning fifty years

This paper reports findings from a third consecutive study to re‐visit a steelworks that provided a classic elaboration of the industrial enterprise as a social system. The social system of the works in the 1950s (Scott et al., 1956) was used to explain the positive orientation of steelworkers to change. A later study of the plant in 1991 uncovered a remarkably similar positive orientation to change in the plant indicating a number of continuities (Blyton et al., 1996). Despite massive changes affecting the plant between the 1950s and the early 1990s, the social system of the works‐occupational structures and identities and management‐union relations‐were seen as having a continuing bearing on steelworkers’ attitudes to work in general, and their positive orientation to work change in particular. A third study of employee attitudes in the same plant in 1999 revealed important changes had occurred during the 1990s.     

The impact of neoliberal school choice reforms on students with disabilities: perspectives from New York City

This disability studies in education informed study unpacks effects of neoliberal reforms on students with disabilities in New York City schools. These reforms proliferated small themed schools, dismantled many large schools, and required students to apply to high school. This multi-site case study researched two high schools, one large and one small, with data from interviews and document review. Findings reveal how reforms forced large schools to accept many marginalized students with disabilities, while small schools employed tactics to avoid accepting many students with disabilities seen as having intensive needs. Finally, contextual analysis reveals how larger city politics perpetuated segregative ideologies.