In this paper a dierential game model of renewable resource ex- ploitation is considered in which rms compete in exploiting a com- mon resource in a Bertrand price-setting game. The model character- izes a situation in which rms extract a common renewable resource which after harvesting may be...

This research project discusses an applicative example of the evaluation methodologies of local sustainability in the context of the Veneto lagoon system,paying close attention to the activities related to fishing and to the primary sector. A specific system of indicators is used to measure and...

This study analyzes the small-scale fishery in Kalymnos Island (located in Eastern Mediterranean Sea) to evaluate fishing practices in this fishery. The métiers of this fishery are defined with a multivariate analysis approach for assessing the main fishery resources and fishing gear employed....

The aim of this study was to identify the main métiers practiced by gillnet, trammel net and combined net fishery in the Kalymnos Island. The catch was obtained every 15 days of the small-scale fleet for the period from February 2013 to May 2014 by interviews during unloading. A total 315...

Small-scale fishery represents an important part of Mediterranean fishery. In order to improve the knowledge on this sector primary research was carried out in the Dodecanese fishery aiming to identify the fishery and socioeconomic characteristics, fishing activities, and to identify the...

By using robustness methods we design HCRs that explicitly include scientific uncertainty. Under scientific uncertainty –when the perceived model can be generated by a nearby op- erating model– robust HCRs are designed assuming that the (inferred) operating model is more persistent than the...

This paper develops an economic equilibrium model for pollution management and resource generation within a district, segmented into blocks. The model uses quadratic equations to derive equilibrium conditions at both block and district levels. The analysis incorporates principles from Keynesian,...

We address the problem of optimal management of a self organizing ecosystem along ecological succession. A dynamic carrying capacity is interpreted as depicting the dynamics of habitat creation and occupation along ecological succession. The ecosystem may have three growth modes: pure...

The context of this paper is the measurement of welfare and weak sustainability, defined as non-declining utility, in dynamic economies, i.e., green, environmental or comprehensive accounting. We estimate the green net national product and genuine saving for Portugal 1991-2005, accounting for...

This work examines the impact that economic growth can have on biodiversity and on the ecological dynamics that would naturally emerge in the absence of human activity. The loss of biodiversity may induce policy-makers to implement defensive actions that prevent single species from extinction....