No new state tax: universal health care coverage for children in Florida

Florida, which this year passed a sweeping health reform measure, is considering use of a Medicaid expansion option to revamp health care delivery for its children.     

Small Sample Properties Of Existing And New Estimators Of The Autocorrelation Coefficient And Regression Coefficients In The Context Of Ar(1) Errors

This study systematically and comprehensively investigates the small sample properties of the existing and some new estimators of the autocorrelation coefficient and of the regression coefficients in a linear regression model when errors follow an autoregressive process of order one. The new estimators of autocorrelation coefficient proposed here are based on the jackknife procedure. The jackknife procedure is applied in two alternative ways: first to the regression itself, and second to the residuals of the regression model. Next, the performance of the existing and new estimators of autocorrelation coefficient (thirty-three in total) is investigated in terms of bias and the root mean squared errors. Finally, we have systematically compared all of the estimators of the regression coefficients (again thirty-three) in terms of efficiency and their performance in hypothesis testing. We observe that the performance of the autocorrelation coefficient estimators is dependent upon the degree of autocorrelation and whether the autocorrelation is positive or negative. We do not observe a direct link between the bias and efficiency of an estimator. The performance of the estimators of the regression coefficients also depends upon the degree of autocorrelation. If the efficiency of regression estimator is of concern, then the iterative Prais-Winsten estimator should be used since it is most efficient for the widest range of independent variables and values of the autocorrelation coefficient. If testing of the hypothesis is of concern, then the estimators based on jackknife technique are certainly superior and are highly recommended. However, for negative values of the autocorrelation coefficient, the estimators based on Quenouille procedure and iterative Prais-Winsten estimator are comparable. But, for computational ease iterative Prais-Winsten estimator is recommended.

     

Generational differences in perceptions of financial planners

This study investigates the differences in adoption of and perceptions about financial planners among different age groups. Data from a survey of more than 300 people across generations were used to determine if decisions of hiring financial planners, or the types of services requested from financial planners, differed across different age cohorts. Although there are some similarities across generations about expectations of expertise, unselfishness, and trustworthiness of financial planners, there are differences in how financial planners are sought out, and the areas of advice desired by different generations. Millennials and Generation X have a higher preference for independent financial planners over affiliated planners, require more frequent communication with their planners, consider advice for risk management as important as retirement planning, and wish to remain more involved with their planners than the older cohorts.     

Power laws, discontinuities and regional city size distributions

Urban systems are manifestations of human adaptation to the natural environment. City size distributions are the expression of hierarchical processes acting upon urban systems. In this paper, we test the entire city size distributions for the southeastern and southwestern United States (1990), as well as the size classes in these regions for power law behavior. We interpret the differences in the size of the regional city size distributions as the manifestation of variable growth dynamics dependent upon city size. Size classes in the city size distributions are snapshots of stable states within urban systems in flux.     

AN EXAMINATION OF TRENDS AND IMPACT OF AUTHORSHIP COLLABORATION IN LOGISTICS RESEARCH

The discipline of logistics is undergoing tremendous change, including shifts in the focus of our associations, as well as in the subject matter, that is deemed important to the academic and professional community. In this article, we seek to evaluate how research in the discipline is also changing, specifically in terms of the degree of collaboration among scholars involved. We draw upon 3,116 articles published from 1987 through 2007 in seven logistics journals. Using the authorship and the citation counts of these articles, we identify several important characteristics of collaboration and offer preliminary empirical insight about the associated trends and impact that collaboration is having within our discipline. This initial assessment provides the potential to spur further interest into the theoretical development and empirical testing on this timely and important topic.     

Macroeconomic shocks under alternative exchange rate regimes: the Irish experience

The paper investigates the nature of Irish macroeconomic shocks and their correlation with German and UK shocks. A restricted VAR of real output and prices is employed to distinguish aggregate demand and supply shocks for the three countries. To identify the role of Irish exchange rate policy two periods are considered: the preERM period and the ERM period. The results indicate that while the change in exchange rate policy had an effect on the nature of demand and supply shocks, the ERM did not have the effect of increasing the correlation of Irish shocks with Germany or the UK. Evidence of substantial asymmetric shocks with Germany and the UK exist. Thus, Ireland as a member of the EMU faces increased cost of adjustment to asymmetric macroeconomic shocks.