Welfare Time Limits: An Update on State Policies, Implementation, and Effects on Families

One of the most controversial features of the 1990s welfare reforms was the imposition of time limits on benefit receipt. This comprehensive review, written by The Lewin Group and MDRC, includes analyses of administrative data reported by states to the federal government, visits to several states, and a literature review

Diversity In Supply Chains: What Really Matters?

Diverse, well-developed supply chains promote business success by reducing costs, enhancing innovation, successfully integrating acquired businesses and reaching new markets. Managing such inter-organizational relationships improves when the organizational culture is humanistic, achievement oriented, affiliative and self-actualizing and when similar perceptions of these values are held across all buyer and supplier groups. Based on a survey of a diverse group of supplier chief executive officers (n=70) and buyers in a focal organization (n=79), this study finds that African-American executives are less likely to perceive constructive dimensions of organizational culture, while Hispanic executives are more likely to perceive negative dimensions, while buyers perceive the culture as constructive for a culture of diversity

Cross curvature flow on a negatively curved solid torus

The classic 2pi-Theorem of Gromov and Thurston constructs a negatively curved metric on certain 3-manifolds obtained by Dehn filling. By Geometrization, any such manifold admits a hyperbolic metric. We outline a program using cross curvature flow to construct a smooth one-parameter family of metrics between the "2pi-metric" and the hyperbolic metric. We make partial progress in the program, proving long-time existence, preservation of negative sectional curvature, curvature bounds, and integral convergence to hyperbolic for the metrics under consideration.Comment: 21 page

Sphere bundles with 1/4-pinched fiberwise metrics

We prove that all smooth sphere bundles that admit fiberwise 1/4-pinched metrics are induced bundles of vector bundles, so their structure groups reduce from DIFF(S^n) to O(n+1). This result implies the existence of many smooth S^n-bundles over S^k that do not support strictly 1/4-pinched positively curved Riemannian metrics on their fibers

Impact of Exchange Variables on Exit, Voice, Loyalty, and Neglect: An Integrative Model of Responses to Declining Job Satisfaction

This research offers a new theory predicting the effects of three exchange variables, job satisfaction, investment size, and quality of alternatives, on four general responses to dissatisfaction—exit, voice, loyalty, and neglect. Three studies designed to test model predictions\u27 received good support. High satisfaction and investment encouraged voice and loyalty and discouraged exit and neglect. Satisfaction and investment interacted, with variations in investment most strongly promoting voice given high satisfaction. Better alternatives encouraged exit and voice and discouraged loyalty. However, there was no link between alternatives and neglect

Organizational Politics, Psychological Empowerment And Organizational Commitment: Empirical Evidence From Pakistan

Despite its ubiquity in organizations, organizational politics may be viewed negatively by managers. When managers empower employees, the effect of organizational politics may be moderated. This study of Pakistani managers (n=357) demonstrates that organizational politics changes from having a negative effect on employee commitment to a strong positive effect when employees perceive psychological empowerment. The study also validates the use of existing measurement scales in non-Western cultures

Sphere bundles with 1/4-pinched fiberwise metrics

We prove that all smooth sphere bundles that admit fiberwise 1/4-pinched metrics are induced bundles of vector bundles, so their structure groups reduce from DIFF(S^n) to O(n+1). This result implies the existence of many smooth S^n-bundles over S^k that do not support strictly 1/4-pinched positively curved Riemannian metrics on their fibers