Five-year-old children categorized as skilled versus unskilled counters were given verbal estimation and number word comprehension tasks with numerosities 20-120. Skilled counters showed a linear relation between number words and nonsymbolic numerosities. Unskilled counters showed the same linear relation for smaller numbers to which they could count, but not for larger number words. Further ta...

This paper contributes to the search theory of unemployment by endogenously generating matching functions for skilled and unskilled workers from a wage-posting game. The model is capable of producing a positive skill premium and a positive wage di®erential among homogeneous unskilled workers. The skill premium arises from a skill-biased technology; the wage di®erential among unskilled workers s...

ington retirement study. Unpublished papers, available from Dr R.C. Taylor). Between 1964 and 1966 Dr John Martin conducted a comprehensive investigation of retirement among workers at the Pilkington Glass Factory in St Helens. He grouped sample members (n = 684) according to skill level and the length of time expected to elapse before retirement, and in the case of those who had already retire...

BACKGROUND Anterior cruciate ligament (ACL) injuries pose a significant risk to the careers of players in the National Football League (NFL). The relationships between draft round and position on return to play (RTP) among NFL players are not well understood, and the ability to return to preinjury performance levels remains unknown for most positions. PURPOSE To test for differences in RTP ra...

OBJECTIVE Firefighter physical aptitude tests were administered to unskilled subjects and operational firefighters to evaluate the impact that testing bias associated with gender, age, activity-specific skills, or task familiarity may have upon establishing performance thresholds. METHODS These tests were administered in sequence, simulating hazmat incidents, ventilation fan carriage (stairs)...

This paper reconsiders the cost of business cycles under incomplete markets. Primarily, we focus on the heterogeneity in the cost of business cycles among agents with different skill levels. Unskilled workers are subject to a much larger risk of unemployment during recessions than are skilled workers. Moreover, unskilled workers earn less income, which limits their ability to self-insure. We ex...

Fairness considerations within the …rm are introduced into the determination of wages in a two factor Pissarides-style model of search unemployment to study its implications for the unemployment rates of unskilled and skilled workers in both the closed economy case and when the economy can o¤shore some inputs. While the e¤ect of a fair-wage constraint on unskilled workers takes the form of an i...

BACKGROUND A measure of the proportion of deliveries assisted by skilled attendants is one of the indicators of progress towards achieving Millennium Development Goal (MDG) 5, which aims at improving maternal health. This study aimed at establishing delivery practices and associated factors among mothers seeking child welfare services at selected health facilities in Nyandarua South district, K...