Shifting the Curve

The Canadian Phillips Curve and Regime Shifting

Phillips curves are generally estimated under the assumption of linearity and parameter constancy. Linear models of inflation, however, have recently been criticized for their poor forecasting performance. The author investigates the linearity and constancy assumptions of a standard reduced-form Phillips curve for Canada using two different techniques: (i) the methodology proposed by Bai and Pe...

The hip fracture incidence curve is shifting to the right

BACKGROUND The number of hip fractures has doubled in the last 30-40 years in many countries. Age-adjusted incidence has been reported to be decreasing in Europe and North America, but is there a decreasing trend in all age groups? PATIENTS AND METHODS This population-based study included all hip-fracture patients over 50 years of age (a total of 2,919 individuals, 31% of whom were men) admit...

Shifting the bell curve: the benefits and costs of raising student achievement.

Benefit-cost analysis was conducted to estimate the increase in earnings, increased tax revenues, value of less crime, and reductions in welfare costs attributable to nationwide implementation of rapid assessment, a promising intervention for raising student achievement in math and reading. Results suggest that social benefits would exceed total social costs by a ratio of 28. Fiscal benefits to...

Shifting the Curve: Fostering Academic Success in a Diverse Student Body

PROBLEM Diversity in the health care workforce is key to achieving health equity. Although U.S. medical schools have worked to increase the matriculation and academic success of underrepresented minority (URM) students (African Americans, Latinos, others), they have had only limited success. Lower standardized test scores, including on the Medical College Admission Test (MCAT), have been a barr...

Performance of second-order latent growth curve models with shifting indicators