With increasing fishing pressures having brought several stocks to the brink of collapse, there is a need for developing efficient harvesting methods that account for factors beyond merely yield or profit. We consider the dynamics and management of a stage-structured fish stock. Our work is based on a consumer-resource model which De Roos et al. (in Theor. Popul. Biol. 73, 47-62, 2008) have der...

OBJECTIVES Since the Cabinet's decision concerning the Basic Policies 2005, the Japanese government has implemented specific measures to suppress increases in national medical care expenditure. However, we believe that the economic significance of medical care should be quantified in terms of its economic impact on national medical care expenditure. No one has examined the economic impact of al...

In a rapidly growing industry, potential entrants strategically choose which local markets to enter. Facing the threat of additional entrants, a potential entrant may lower its expectation of future profits and delay entry into a local market, or it may accelerate entry due to preemptive motives. Using the evolution of local market structures of broadband Internet service providers from 1999 to...

Profit Sharing and Workplace Productivity: Does Teamwork Play a Role? The conditions under which profit sharing affects workplace productivity have never been fully understood. Using panel data, this paper examines whether there is any link between adoption of an employee profit sharing plan and subsequent productivity growth in Canadian establishments, and whether this relationship is affected...

Empirical evidence indicates that there can be persistent profit differentials between firms in an industry. We show that demand uncertainty and costly information acquisition by firms on market demand leads to significant profit differentials for intermediate levels of demand variability.  2000 Elsevier Science S.A. All rights reserved.

The World Health Assembly passed a resolution on the importance of engaging with the private health sector. However, the reality is that universal health coverage aspirations are particularly challenging when there is a significant private health sector. This sector in South Africa suffers from rapidly increasing costs, inflation and volume of services (unnecessary medical tests or treatments)....

We present an empirical analysis of a supply function equilibrium model in the Texas spot electricity market. We derive conditions for optimal bidding behavior in a spot market with ex ante bilaterally contracted sales. By estimating costs, we are able to derive a set of ex post-and ex ante-optimal supply functions and use a non-parametric behavioral model to compare our theoretically optimal s...

subject written in England and primarily for English readers. The book is not intended merely for the medical profession, though most medical officers will read it with profit; it is a popular handbook and is written like the same author's Medical Jurisprudence mainly for non-professional readers and consequently in clear and simple language. In addition to being a book on Hygiene, it also deal...

AIM This paper provides a critical overview a decade after the New Zealand Government announced its intention to formally incorporate a public health approach into its comprehensive revision of gambling legislation. METHOD The initial enthusiasm and the subsequent disillusionment with this approach are tracked. Four reasons for its lack of success are examined. FINDINGS The New Zealand expe...

The nature of competition is quite different in network industries as compared to the other, more traditional, ones. The purpose of the present paper is to thoroughly examine the implications of these differences as reflected in the dependence of equilibrium outputs, price and profits on industry concentration. We restrict the analysis to oligopolistic competition amongst firms in a market char...