Mark James McCabe

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Despite their influence on the careers of economists, the production and pricing of scholarly journals have received scant attention from the profession. By contrast, the issue of journal quality and scholarly research productivity have been studied in far greater detail (a search in the EconLit database using the term “journal” generates several dozen(More)
Septo-optic dysplasia (SOD) is a highly heterogeneous condition comprising variable phenotypes including midline and forebrain abnormalities, optic nerve and pituitary hypoplasia. Most instances of SOD are sporadic and several aetiologies including drug and alcohol abuse have been suggested to account for the pathogenesis of the condition. However, a number(More)
OBJECTIVE To measure the incidence of childhood fractures in a defined population. SETTING Accident and emergency (A&E) departments covering the Swansea and Neath Port Talbot areas of South Wales in 1996. METHODS Linkage of data from A&E departments with population data to produce fracture incidence rates by anatomical site and cause in children aged(More)
Sertoli cell tight junctions (TJs) are an essential component of the blood-testis barrier required for spermatogenesis; however, the role of gonadotropins in their maintenance is unknown. This study aimed to investigate the effect of gonadotropin suppression and short-term replacement on TJ function and TJ protein (occludin and claudin-11) expression and(More)
CONTEXT Kallmann syndrome (KS), combined pituitary hormone deficiency (CPHD), and septo-optic dysplasia (SOD) all result from development defects of the anterior midline in the human forebrain. OBJECTIVE The objective of the study was to investigate whether KS, CPHD, and SOD have shared genetic origins. DESIGN AND PARTICIPANTS A total of 103 patients(More)
CONTEXT Fibroblast growth factor (FGF) 8 is important for GnRH neuronal development with human mutations resulting in Kallmann syndrome. Murine data suggest a role for Fgf8 in hypothalamo-pituitary development; however, its role in the etiology of wider hypothalamo-pituitary dysfunction in humans is unknown. OBJECTIVE The objective of this study was to(More)
An open-access journal allows free online access to its articles, obtaining revenue from fees charged to submitting authors or from institutional support. Using panel data on science journals, we are able to circumvent problems plaguing previous studies of the impact of open access on citations. In contrast to the huge effects found in these previous(More)
I model journal pricing behavior in a portfolio demand environment and consider how the ongoing transition from print to digital distribution has lead to endogenous changes in pricing behavior. Specifically, when choosing whether or not to price discriminate, publishers compare the benefits of selling more content to each set of buyers against the(More)
Using data from more than 400 legal serials, I estimate the impact of six publisher mergers on law serial prices during the period, 1990-2000. The results suggest that merger-related price increases were substantial during this period, even after accounting for secular price trends. Furthermore, these merger effects occurred across a broadly-defined(More)