Working While the World Sleeps: A Consideration of Sleep and Shift Work Design

The evolution of society and economic pressure has provided the impetus for operating on a 24-hr basis in many industries. This has occurred with relatively little attention toward sleep deprivation and related problems facing shift workers and the organizations employing them. This paper first documents the move toward shift work and some sleep problems associated with it. We then describe sleep disorders that impact job performance. Next, we describe alternative schedules and give suggestions for shift work implementation. Finally, we offer some normative advice regarding the treatment of shift employees.     

Chronic eosinophilic pneumonia

Chronic eosinophilic pneumonia is one form of eosinophilic lung disease that includes both idiopathic and known etiological cases. Chronic eosinophilic pneumonia has a characteristic clinical picture, along with a characteristic pattern on CT imaging. It is readily treatable with oral steroids, and although response is prompt with excellent resolution of the symptoms, chronic steroids are often necessary. The mortality from this disease is negligible.     

The effects of advertising and solicitation on audit fees

Leading academic and professional accountants have suggested that the crisis in auditing over the past few years may have had its origin in deregulation which allowed firms to advertise their services and solicit new clients, encouraging accounting firms to become more commercial. In this paper, we look at this issue in New Zealand which has the unique distinction of having separated two key forms of deregulation, namely advertising and solicitation, by 6 years. This allows us to separately examine the effect of each form of market competition on audit fees. We find that advertising is associated with increases in fees, not decreases, which suggests that quality-based advertising took place, and not price-based advertising. In contrast, solicitation corresponded with a general decrease in average fees for clients of the Big 8. We interpret this result as indicating an increase in competition among accounting firms. Our results suggest that there may be a much more complex relationship among market competition, advertising and solicitation, and fees than the arguments used to originally justify deregulation.     

Estimating the expected marginal rate of substitution: A systematic exploitation of idiosyncratic risk

We develop a methodology to estimate the shadow risk free rate or expected intertemporal marginal rate of substitution, “EMRS”. Our technique relies upon exploiting idiosyncratic risk, since theory dictates that idiosyncratic shocks earn the EMRS. We apply our methodology to recent monthly and daily data sets for the New York and Toronto Stock Exchanges. We estimate EMRS with precision and considerable time-series volatility, subject to an identification assumption. Both markets seem to be internally integrated; different assets traded on a given market share the same EMRS. We reject integration between the stock markets, and between stock and money markets.     

Realised volatility and parametric estimation of Heston SDEs

Finance and Stochastics - We present a detailed analysis of observable moment-based parameter estimators for the Heston SDEs jointly driving the rate of returns $(R_{t})$ and the squared...     

Productive behavior through the life course: An essay on the quality of life

Present patterns of productive activity are neither well recognized, optimal for society, nor in accordance with individual prefence. Although a great deal of attention has been given to meeting people's needs for income, medical care, and other services, the quality of their lives must also be defined by what they do for themselves and for others. In discovering present patterns of productive activity throughout the life course and optimizing those patterns, we will raise the quality of American life. To accomplish this task, two great changes are needed: we must recognize the full range of productive activities throughout the life course and give people the opportunity to modify the allocation of paid employment.     

Market Orientation,Generative Learning,Innovation Strategy and Business Performance Inter‐Relationships in Bioscience Firms

We propose conceptual arguments to establish relationships between market orientation and generative learning and their respective impact on exploitative innovation strategy and explorative innovation strategy. We then consider the ambidextrous association between both forms of innovation strategy and business performance. This model is subject to an empirical test using data generated from 160 bioscience firms. Using structural equation modelling, two mutually exclusive paths are specified where market orientation leads to exploitative innovation strategy, while generative learning leads to explorative innovation strategy. We then find that the ambidexterity exhibited by firms in the form of exploitative innovation strategy and explorative innovation strategy significantly explains improvements in firms’ business performance. Discussion is given to these findings and managerial implications are presented along with avenues for further research.