Estimating Parameters of a Renewable Resource Model Without Population Data

A general approach to determining parameters of a traditional bioeconomic model is offered for the situation in which knowledge of resource abundance is unknown. Production parameters (such as catchability coefficients) and biological factors (such as natural mortality and recruitment) are included in the model. The general model is articulated for a typical fishery and further specified to obtain estimates of parameters for the St. John's River shad fishery. The results, considering the illustrative nature of the analysis, are promising and suggest avenues of additional research.Environmental Economics and Policy, Research Methods/ Statistical Methods, Resource /Energy Economics and Policy, Risk and Uncertainty,

SHORT-RUN WELFARE LOSSES FROM ESSENTIAL FISH HABITAT DESIGNATIONS FOR THE SURFCLAM AND OCEAN QUAHOG FISHERIES

In this paper, we present a spatial model of fishing that can be used to assess some of the economic welfare losses to producers from setting aside essential fish habitat (EFH) areas. The paper demonstrates how spatially explicit behavioral models of fishing are estimated, how these models can be used to measure welfare losses to fishermen, and how these models can then, in turn, be used to simulate fishing behavior. In developing the spatial model of fishing behavior, the work incorporates ideas of congestion and information effects, and we show a modification of standard welfare measures that accounts for these spillover effects. Using this methodology, these effects are traced through to the policy simulations, where we demonstrate how these welfare and predicted shares need to be modified to account for spillover effects from fleet activity.Resource /Energy Economics and Policy,

USCID water management conference

Presented at Upgrading technology and infrastructure in a finance-challenged economy: a USCID water management conference held on March 23-26, 2010 in Sacramento, California.Includes bibliographical references.The Central Arizona Irrigation and Drainage District (CAIDD) began delivering water to users in 1989. Although designed for automatic control, the system was run manually until a homemade SCADA (Supervisory Control and Data Acquisition) system was developed by district employees. In 2002, problems with radio communication and limitations of the homemade SCADA system prompted CAIDD to begin the process of modernization. New spread-spectrum radios and RTUs (Remote Terminal Units) were purchased along with a commercial SCADA package (iFix by GE-IP). In 2005, CAIDD decided to pursue implementation of full automated control of a majority of district check gates. Currently, 125 gates are under remote manual supervisory control and 129 water levels are remotely monitored. CAIDD chose to implement SacMan (Software for Automated Canal Management) under development by the U.S. Arid Land Agricultural Research Center, Maricopa, AZ. The decision was made to only apply full automation at gates that had gate position sensors. Thus purchase and installation of gate position sensors have slowed implementation. To date, five lateral canals have been set up for full automatic control, where SacMan routes flow changes through the canal and uses downstream water level feedback control to correct for any errors that occur. The ditchrider only makes changes at the farm turnouts and district-operated wells. Automation of the Central Main canal has been tested in simulation. Control of this canal requires special treatment, as described in a companion paper. The district is waiting until enough of the canal is ready for automation before it turns automatic controls on 24/7, since this will require some operator training and remote oversight when problems occur. We hope this occurs in the summer of 2010

USCID water management conference

Presented at Upgrading technology and infrastructure in a finance-challenged economy: a USCID water management conference held on March 23-26, 2010 in Sacramento, California.Includes bibliographical references.The operation of main irrigation canals is complicated in situations where the operator does not have full control over the canal inflow, or where there are very long transmission distances from the point of supply, or both. Experienced operators are able to control the canal, but often supply errors are simply passed to downstream, thus creating problems further down the system. In previous work, the senior author showed that it is important to contain such errors and not let them pass downstream. With automatic upstream level control, all flow errors are passed to the downstream end of the canal. Distant downstream water level control requires full control of canal inflow. Without this, most errors will occur toward the upstream end of the canal. An alternative scheme is offered here where the canal check gates are controlled based on the relative water level error between adjacent pools. The scheme uses a simple linear model for canal pool response. The scheme is implemented as a multiple-input, multiple-output scheme and solved as a Linear Quadratic Regulator (LQR). Thus all gates respond to relative deviations from water-level set point. The scheme works to keep the relative deviations in all pools the same. If the canal has more inflow than outflow, the scheme will adjust gates so the water levels in all pools will rise together with the same deviation from set point. It thus distributes the error over the entire canal. When in equilibrium, operators will be able to judge the actual flow rate mismatch by the rate of change of these levels. The scheme acts like a combination of upstream level and distant downstream level control. It was tested on a simulation model of the Central Main Canal at the Central Arizona Irrigation and Drainage District, Eloy, AZ

Metaphors We Strategize By

The metaphors of strategic management are predominantly rooted in competition in support of the objective to achieve a “competitive advantage.” Drawn from military, sport, and (oftentimes incomplete) interpretations of evolutionary biology, these metaphors imply that business is a zero-sum competitive game. Metaphors are not “just” words but, rather, they impact thoughts and actions. Hence the use of competitive metaphors encourages competitive behavior in business. We argue that this misdirects the purpose of business from being about value creation and, moreover, that value creation is most effectively achieved by approaching business as a fundamentally cooperative endeavor. Furthermore, these “survival of the fittest” sorts of metaphors inhibit considerations toward ethics, humanism, and sustainability. We call for a shift toward metaphors rooted in cooperation and as a means to do so we also call for a shift in focus from achieving “competitive advantage” toward achieving “cooperative advantage” as the objective of strategic management. We conclude by laying out some promising research avenues for further considerations

Short-run Welfare Losses from Essential Fish Habitat Designations for the Surfclam and Ocean Quahog Fisheries

In this paper, we present a spatial model of fishing that can be used to assess some of the economic welfare losses to producers from setting aside essential fish habitat (EFH) areas. The paper demonstrates how spatially explicit behavioral models of fishing are estimated, how these models can be used to measure welfare losses to fishermen, and how these models can then, in turn, be used to simulate fishing behavior. In developing the spatial model of fishing behavior, the work incorporates ideas of congestion and information effects, and we show a modification of standard welfare measures that accounts for these spillover effects. Using this methodology, these effects are traced through to the policy simulations, where we demonstrate how these welfare and predicted shares need to be modified to account for spillover effects from fleet activity

In Praise of Corporate Social Responsibility Bureaucracy

In this dissertation I examine the establishment of corporate social responsibility (CSR) bureaucracies at corporations and I come to consider the CSR bureaucracy as a space for reflection within the corporation. In the face of charges that bureaucracies are inherently unethical and devoid of consideration for humanistic concerns, I argue that within the large bureaucracy that is the corporation, the CSR bureaucracy can create a space in which tensions that arise from conflicting values and purposes can be identified, negotiated, and actions coordinated. I position this dissertation within the field of CSR, to which I introduce the Weberian distinction between formal and substantive rationality as means through which to identify and describe tensions that become apparent with the CSR agenda. This dissertation contains four articles, two of which draw from the engaged scholarship approach. One includes findings from a study I conducted as an action/intervention researcher with a U.S. corporation during the period in which a CSR bureaucracy was established. The other includes findings from a study of CSR focused MBA courses I instruct in which reflection is a primary learning objective. The other two articles include findings from studies I conducted to explore the establishment of a CSR position to the top management teams of U.S. and Scandinavian corporations

Toward a Theory of Scandinavian Cooperative Advantage

Whereas strategic management in the U.S. has traditionally focused on competition and a competitive advantage, Scandinavian strategic management has long centered on effective cooperation. In light of recent calls in the U.S. to shift toward cooperation to realize opportunities for shared value creation and address sustainability challenges, the Scandinavian context can effectively serve as an inspiration for this shift. We conduct our exploration with two interrelated objectives: to increase awareness of the Scandinavian cooperative approach and encourage practitioner and researcher inquiry, and to provide a stepping stone to a more thorough research agenda on cooperation in the Scandinavian context