A Nested Demand Shares Model of Artificial Marine Habitat Choice by Sport Anglers

There is growing public interest in the development of artificial habitats to enhance and diversify coastal marine resources for recreational and commercial uses. In this article, a hierarchical discrete choice model of recreational demand for artificial habitat is presented using a nested multinomial logit analysis of artificial and natural habitat site choice by sport anglers. The model can be used to evaluate the effects of site characteristics and socioeconomic attributes of individual sport anglers on the share allocation of marine fishing trips and to estimate the economic benefits of new artificial habitat. An empirical application using survey data from sport anglers in southeast Florida is reported. The model parameters are used to estimate the expected use benefits and distributional implications of alternative new artificial habitat sites. Extensions and limitations of the model for artificial habitat planning are considered.Environmental Economics and Policy, Research Methods/ Statistical Methods, Resource /Energy Economics and Policy,

TRAVEL COST METHODS FOR ESTIMATING THE RECREATIONAL USE BENEFITS OF ARTIFICIAL MARINE HABITAT

The growing popularity of marine recreational fishing has created considerable interest in artificial marine habitat development to maintain and enhance coastal fishery stocks. This paper provides a comparative evaluation of travel cost methods to estimate recreational use benefits for new habitat site planning. Theoretical concerns about price and quality effects of substitute sites, corner solutions in site choice, and econometric estimation are considered. Results from a case study indicate that benefit estimates are influenced by the way these concerns are addressed, but relatively simple single site models can provide defensible estimates. Practical limitations on data collection and model estimation are also considered.Resource /Energy Economics and Policy,

SITE CHARACTERISTICS AND REVEALED PREFERENCES FOR OUTDOOR RECREATION

Resource /Energy Economics and Policy,

Altération et bifurcation : l’écho est-il neutre ?

L’écho ne se contente pas de reproduire ce qu’il entend comme le souligne la tradition latine. Figure d’Écho, l’écho fait tout ce qu’il peut pour refuser la transparence et la neutralité. Il se venge de la malédiction qu’il porte en altérant tout ce qu’il touche. Sa vengeance est l’expression de son existence. Mais, au-delà de l’écho, c’est toute la question de ces expressions et formes qui vivent en retrait et en attente qui est posée ; la question du suiveur : « qui me précède ? » ; la question de l’ombre : « suis-je une ressemblance ? » ; la question du miroir : « quelle image dois-je renvoyer ? ». La figure de l’écho offre ainsi l’occasion de s’interroger sur la guerre que se livrent l’original et la copie tout en se demandant si l’existence d’un énoncé sans origine est envisageable. À cette question, l’écho répond par la seule arme en sa possession : l’altération. C’est toute la question de la neutralité de l’écho que nous poserons en réfléchissant sur l’altération que la voix d’Écho profère.Far from reproducing what it hears, as the Latin tradition would have it, the echo resists transparency and neutrality. It avenges itself for the curse it carries by distorting everything it touches. Its revenge is the expression of its existence. However, the main concern here has to do with the expressions and forms that live in withdrawal and on standby; the question of the follower: “who precedes me ?”, the question of the shade: “am I a resemblance?”, the question of the mirror: “what image should I return?”... The echo thus offers the opportunity to wonder about the war between the original and the copy, while wondering if the existence of a statement without origin is possible. The echo answers this question with the only weapon in its possession: distortion. I will examine the question of the neutrality of the echo while reflecting on the distortion made by the voice of Echo

Is Investment in Environmental Quality a Solution to Recessions? Studying the Welfare Effects of Green Animal Spirits

Assume that 'green accounting' has been adopted and implemented, does an investment in environmental quality play a role similar to the investment in capital in towing the economy out of a recession? To answer the question, we integrate 'green accounting' into a stochastic dynamic general equilibrium model to study the short-run consequences of investment in environmental quality and hereby addressing if there is an incentive-based fiscal environmental solution to recessions. Surprisingly and counter intuitive, we found that reducing the rate at which humans consume the environment renders a fiscal policy - that engage in environmental investment - less effective in providing a thrust out of a recession. Conditional on the proposed model and the calibrated parameters, we conclude that an increase of one percent in environmental investment will crowd out real quarterly consumption in a range from $102.74 billions to$ 171.11 billions, on average, in every quarter for seven years following the investment (measured in chained 2000 dollars). Therefore, we argue that investment in environmental quality is not a solution to recessions. This result is a striking contrast to the conclusion reached in Weitzman and Löfgren (1997, Journal of Environmental Economics and Management, 32 (2), 139-153).Environmental Quality, Green Accounting, Stochastic Dynamic General Equilibrium models

Neighborhood Development Corporations Association of Cincinnati : one stop community development online electronic clearinghouse

The Neighborhood Development Corporations Association (NDC Association/NDCA) is a 501(c)(3) nonprofit Association in Cincinnati, Ohio. It serves 59 member organizations. Nineteen of these members are located in the nine Empowerment Zones (EZ) "with a poverty rate of 46.8% that is nearly twice the rate of the City of Cincinnati (24.3%). The NDC Association proposes a One-stop Online Community Development Clearinghouse. It will facilitate improved communications, increase consultation and peer to peer problem solving, increase specialized training, provide a minimum of six templates each for social and economic impact measurements, and feature the first area online economies of scale and comprehensive development models. Although centrally located and maintained at the NDC Association's office, it can be accessed anywhere at anytime with a touch of a fingertip. The community development virtual reference library presents interactive opportunities for forums and training. The Clearinghouse is a tool that promotes partnerships. The flexibility and convenience of the Clearinghouse supports efficiency of operations and collaborative efforts. (Author abstract)Milon, B. J. (2001). Neighborhood Development Corporations Association of Cincinnati : one stop community development online electronic clearinghouse. Retrieved from http://academicarchive.snhu.eduMaster of Science (M.S.)School of Community Economic Developmen

ON THE FRONTIER OF GENERATING REVEALED PREFERENCE CHOICE SETS: AN EFFICIENT APPROACH

Deterministic rules for generating choice sets are often employed by analysts confronting universal sets with large numbers of alternatives. For destination choice analysis, site exclusion rules defined by travel time, distance, or quality have a behavioral appeal, yet are fundamentally limited by their one-dimension scope. To remedy this shortcoming while maintaining the concept that trips require costly inputs to yield utility generating outputs, we develop and test an exclusion rule for generating choice sets defined by efficiency measures derived from stochastic frontier econometric models. Choice set composition, site choice efficiency and probability of selection, and consumer surplus are compared with results obtained under alternative exclusion rules.Research Methods/ Statistical Methods,

Adhesive factor/rabbit 2, a new fimbrial adhesin and a virulence factor from Escherichia coli O103, a serogroup enteropathogenic for rabbits

Enteropathogenic Escherichia coli-like E. coli strains belonging to serovar O103:K-:H2 and rhamnose-negative biotypes are highly pathogenic diarrhea-inducing strains for weaned European rabbits. We describe here the cloning and sequencing of the major subunit gene of a new fimbrial adhesin, adhesive factor/rabbit 2 (AF/R2), which confers on these strains the ability to attach to rabbit enterocytes and to HeLa cells in a diffuse manner and which is associated with in vivo virulence. The chromosomal operon that encodes functional AF/R2 has been cloned from strain B10. The major subunit gene afr2G, as well as an adjacent open reading frame, afr2H, has been sequenced. The Afr2G protein shows homologies with FaeG and ClpG, which are the respective major subunits of fimbrial adhesin K88 (F4) and afimbrial adhesin CS31A. Plasmid carrying the operon transcomplements an AF/R2-negative TnphoA mutant for its ability to express AF/R2. As a whole, AF/R2 is a new member of the E. coli K88 adhesin family which is associated with virulence and which may serve in the design of vaccines

Economic profile of Florida's marine life industry

The marine life industry in Florida is defined as the harvest of live marine specimens (fish and invertebrate species including plants, live rock and sand, and small “critters”) for commercial use, primarily aquariums. This paper summarizes data collected on the industry since 1990, including total landings, revenues, and trends over time. Regional analysis shows where the primary collecting areas are located in Florida. Seasonal analysis shows when the majority of landings occur within the year. Statistics on the number of participants by type (i.e., collector versus wholesaler) provide insight into the size of the industry. Trends are evaluated in terms of changes across the 9-year period from 1990 to 1998. In general, the number of licensed collectors has increased substantially, landings of fish and animal invertebrates peaked in 1994, angelfish dominated the fish landings, live rock dominated the invertebrate landings, and the average landings per trip have remained relatively constant. (67pp.

The state of Florida's estuaries and future needs in estuarine research: Part 2. an academic research agenda (review draft)

As a program supporting academic research that addresses recognized societal needs, the Florida Sea Grant Program is developing a research theme area on estuaries to provide a uniquely academic product that will augment mission-oriented research undertaken by government and by the private sector. This report is not a call for proposals. It does not prescribe a specific research plan. Rather, it is a concept paper designed to focus research on two broad "organizing themes": (1) the hydrology of Florida's estuaries, and (2) the impact of cyclic environmental variability on estuarine function. (46pp.