Ferroelectric and ferromagnetic materials are employed as both actuators and sensors in a wide variety of applications including fluid pumps, nanopositioning stages, sonar transducers, vibration control, ultrasonic sources, and high-speed milling. They are attractive because the resulting transducers are solid-state and often very compact. However, the coupling of field to mechanical deformatio...

Three things appear on a business card: the employee’s name, her employer, and her job title. One may wonder why a firm would send a signal of the employee’s talents to the outside world. After all, if the signal is credible then a sexy job title increases the employee’s outside options to the detriment of the employer. We argue that while internal organization of the firm and delivery of utili...

Objective—The purpose of this study was to examine the association of intergenerational education and country of birth with waist circumference, metabolic syndrome, and type-2 diabetes among older adult Latinos in the United States. Design and Methods—We used cross-sectional data from the Sacramento Area Latino Study on Aging, a cohort of older adult Mexican-American Latinos (mean age=70 years)...

We solve a liquidation problem for an agent with preferences consistent with the prospect theory of Kahneman and Tversky (1979). We find that the agent is willing to hold a risky project with a relatively inferior Sharpe ratio if the project is currently making losses, and intends to liquidate it when it breaks even. On the other hand, the agent may liquidate a project with a relatively superio...

As hurricanes approach landfall, there are several hazards for which coastal populations must be prepared. Damaging winds, torrential rains, and tornadoes play havoc with both the coast and inland areas; but, the biggest seaside menace to life and property is the storm surge. Wind fields are used as the primary forcing for the numerical forecasts of the coastal ocean response to hurricane force...

Evans and Levinson’s (2009) article claims that the assumption of Chomskyan generative linguistics that knowledge of natural language draws on a small inventory of principles with fixed parametric variation (i.e., Universal Grammar) is empirically untenable. We agree that the authors point out prima facie limitations of that approach, and we leave it to others to assess howwell their criticisms...

I propose a Schumpeterian analysis of the e¤ects of a de…cit-…nanced cut of the tax rate on distributed dividends. I develop a very tractable model that allows me to study analytically transition dynamics and welfare, and complement the qualitative results with a quantitative assessment of the Job Growth and Taxpayer Relief Reconciliation Act (JGTRRA) of 2003. I …nd that the JGTRRA produces low...

This paper presents a theory of liquidity cycles based on endogenous fluctuations in economic activity and the availability of informed capital. Risky assets are illiquid due to adverse selection. The degree of adverse selection and hence the liquidity of these assets depends on the endogenous information structure in the market. Liquidity provision is modeled as a repeated game with imperfect ...

We develop a statistical framework for the quantitative characterization and analysis of force-extension curves obtained from single-molecule force spectroscopy (SMFS) measurements. We apply this methodology to force-extension data obtained for elastinlike polypeptides (ELPs) with precisely engineered molecular architectures, where we demonstrate that our approach enables SMFS to be used to stu...

This paper confirms very rapid increase in proportion of elderly, huge numbers of elders, an extraordinarily rapid increase of oldest old, and more serious aging problems in rural than urban areas in China. Comparative data analysis on family dynamics of elderly, males vs. females, younger elders vs. oldest old, rural vs. urban, and 1982 vs. 1990 are presented. Family household projection revea...