Do Public Ph.D.-Granting Economics Departments Invert Salaries?

This study analyzes a unique data set containing current salary and detailed job history information on a sample of 902 individuals drawn from 43 public U.S. Ph.D.-granting departments of economics. An analysis of current salaries by academic rank shows that 25% of Assistant Professors earn more that 50% of Associate Professors and 25% of Associate Professors earn more than 25% of Full Professors. Regression analysis suggests that salary inversion is most likely to exist between Associate and Assistant Professors and is more prevalent in lower ranked programs.Salary Inversion

Do editors favor their students' work? A test of undue favoritism in top economics journals

This paper asks whether students with top journal editors as dissertation advisors observe statistical advantages in publishing over students without top journal editors as dissertation advisors. We analyze early-career publication histories of nearly 2,000 graduates from top 30 economics programs in the early 1990s. We find that students who work with QJE editors average significantly higher values over four common measures of general research productivity than otherwise similar students and that students of QJE editors average significantly more AER and QJE publications. We further find that both students of ReStat editors and students of Econometrica editors average statistically more ReStat articles. Our results appear to reject the argument that top journal editors exhibit undue favoritism in the publication process with regards to their former students.Dissertation Advisor; Research Productivity

A DESCRIPTIVE AND ECONOMETRIC ANALYSIS OF ANNUAL SALARIES, GENDER, EXPERIENCE, AND PEER-REVIEWED PUBLICATION HISTORIES WITHIN TOP-RANKED AGRICULTURAL ECONOMICS PROGRAMS

Utilizing an original data set containing annual salaries and peer-reviewed publication histories for 328 faculty members we examine the labor market for academic agricultural economists. Our descriptive analysis shows that while the profession remains male-dominated, females are making significant inroads at the lower academic ranks, the profession is relatively top-heavy, with nearly two-thirds of the faculty in our data set currently holding the rank of full professor, differences in annual salary exist primarily for faculty at Top 6 programs, and then primarily for full professors. Our regression analysis suggests that controlling for publication history there are neither statistically significant negative returns to increased tenure nor statistically significant negative returns to gender, holding all else constant.Teaching/Communication/Extension/Profession,

ON THE RETURN TO JOURNAL QUALITY, COAUTHORSHIP AND AUTHOR ORDER WITHIN TOP RANKED AGRICULTURAL ECONOMICS PROGRAMS

Utilizing an original data set containing annual salaries and peer-reviewed publication histories for 326 faculty members from top-ranked Ph.D.-granting programs we examine the labor market for academic agricultural economists. The results suggest that higher quality publications have a greater impact on annual earnings, that sole authored articles have a higher return than multi-authored articles and that no wage premium exists for being the lead author of a non-alphabetic paper.Teaching/Communication/Extension/Profession,

Women Helping Women in Agricultural Economics? Same-Gender Mentoring and Early Career Research Productivity for Agricultural Economics Ph.D.s

This paper is the first to empirically examine the degree to which student outcomes differ across gender-mentorship configurations for agricultural economics Ph.D. recipients. Using a Negative Binomial regression model, we find that female students working with male advisors average statistically fewer total publications in their early careers than men working with male advisors.Teaching/Communication/Extension/Profession,

A Model Study of Arctic Sea Ice Variability

The focus of the present study is the investigation of the variability of the Arctic sea ice cover on interannual to multi-decadal time scales. Because there is only a rather small number of direct observations, this investigation is based on simulated data. Using realistic daily fields of near surface wind and air temperature derived from the NCEP/NCAR reanalysis, the Arctic sea ice cover is simulated with a dynamic-thermodynamic sea ice model integrated over the time period 1951-1999. Additionally, sensitivity experiments with prescribed interannual variability of either only winds or only air temperatures are performed in order to identify their relative contributions to the simulated variability of the ice pack. A comparison of available observations from satellites, drifting buoys, submarines, and oceanographic moorings reveals a good correspondence of the long-term averaged quantities of the simulated ice concentration, ice drift, and ice thickness, respectively. Moreover, it is shown that the simulation is able to reproduce the observed interannual variations of the sea ice extent. (orig.)Das Ziel dieser Studie ist die Untersuchung der Variabilitaet des arktischen Meereises auf interannualen bis multi-dekadischen Zeitskalen. Aufgrund der eher geringen Anzahl direkter Beobachtungen basiert diese Untersuchung auf simulierten Daten. Unter Verwendung von realistischen, taeglichen Antriebsfeldern des Oberflaechenwindes und der Oberflaechentemperatur, abgeleited aus den NCEP/NCAR Reanalysedaten, wurde die arktische Meereisdecke mit einem dynamisch-thermodynamische Meereismodell ueber den Zeitraum 1951-1999 simuliert. Um die relativen Einfluesse von Wind und Lufttemperatur auf die interannuale Variabilitaet des simulierten Meereises zu untersuchen, wurden zusaetzlich idealisierte Simulationen durchgefuehrt, bei denen entweder nur die interannuale Variabilitaet des Windes oder die der Lufttemperatur vorgeschrieben wurde. Vergleiche mit verfuegbaren Beobachtungen von Satelliten, Driftbojen, U-Booten und ozeanographischen Verankerungen zeigen eine gute Uebereinstimmung mit den langzeitlich gemittelten Simulationsergebnissen der Eiskonzentration, der Eisdrift, der Eisdicke und des Eisvolumenexports in den Nordatlantik. Darueberhinaus wird gezeigt, dass das Meereismodell in der Lage ist, die beobachteten interannualen Schwankungen der Eisausdehnung zu reproduzieren. (orig.)SIGLEAvailable from TIB Hannover: RN 3292(320) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Evidence for a recent change in the link between the North Atlantic Oscillation and Arctic sea ice

Evidence for a recent change in the link between the North Atlantic Oscillation (NAO) and Arctic sea ice export through Fram Strait during wintertime (DJFM) is presented from the analysis of simulated Arctic sea ice and observations for the period 1958–1997. Whereas no correlation between the two time series is found from 1958 to 1977 (r=0.1), the correlation increased significantly thereafter (r=0.7, 1978–1997). The increased coherency between the NAO and Arctic sea ice export through Fram Strait during the last two decades resulted from anomalous meridional wind components near Fram Strait which were associated with the more easterly position of the NAO's centers of interannual variability compared to 1958–1977