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  1. Article ; Online: Using the best of two worlds: A bio‐economic stock assessment (BESA) method using catch and price data

    Lancker, Kira / Voss, Rudi / Zimmermann, Fabian / Quaas, Martin F.

    Fish and Fisheries. 2023 Sept., v. 24, no. 5 p.744-758

    2023  

    Abstract: Reliable stock assessments are essential for successful and sustainable fisheries management. Advanced stock assessment methods are expensive, as they require age‐ or length‐structured catch and detailed fishery‐independent data, which prevents their ... ...

    Abstract Reliable stock assessments are essential for successful and sustainable fisheries management. Advanced stock assessment methods are expensive, as they require age‐ or length‐structured catch and detailed fishery‐independent data, which prevents their widespread use, especially in developing regions. Furthermore, modern fisheries management increasingly includes socio‐economic considerations. Integrated ecological‐economic advice can be provided by bio‐economic models, but this requires the estimation of economic parameters. To improve accuracy of data‐limited stock assessment while jointly estimating biological and economic parameters, we propose to use price data, in addition to catches, in a new bio‐economic stock assessment (‘BESA’) approach for de‐facto open access stocks. Price data are widely available, also in the Global South. BESA is based on a state‐space approach and uncovers biomass dynamics by use of the extended Kalman filter in combination with Bayesian estimation. We show that estimates for biological and economic parameters can be obtained jointly, with reliability gains for the stock assessment from the additional information inherent in price data, compared to alternative assessment methods for data‐poor stocks. In a real‐world application to Barents Sea shrimp (Pandalus borealis, Pandalidae), we show that BESA benchmarks well also against advanced stock assessment results. BESA can thus be both a stand‐alone approach for currently unassessed stocks as well as a complement to other available methods by providing bio‐economic information for advanced fisheries management.
    Keywords Bayesian theory ; Pandalus borealis ; bioeconomics ; biomass ; fish ; prices ; shrimp ; socioeconomics ; Barents Sea
    Language English
    Dates of publication 2023-09
    Size p. 744-758.
    Publishing place John Wiley & Sons, Ltd
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ZDB-ID 2024569-5
    ISSN 1467-2979 ; 1467-2960
    ISSN (online) 1467-2979
    ISSN 1467-2960
    DOI 10.1111/faf.12759
    Database NAL-Catalogue (AGRICOLA)

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  2. Article: Brown Growth, Green Growth, and the Efficiency of Urbanization

    Quaas, Martin F / Sjak Smulders

    Environmental and resource economics. 2018 Oct., v. 71, no. 2

    2018  

    Abstract: We analyze the efficiency of urbanization patterns in a stylized dynamic model of urban growth with three sectors of production. Pollution, as a force that discourages agglomeration, is caused by domestic production. We show that cities are too large and ...

    Abstract We analyze the efficiency of urbanization patterns in a stylized dynamic model of urban growth with three sectors of production. Pollution, as a force that discourages agglomeration, is caused by domestic production. We show that cities are too large and too few in number in uncoordinated equilibrium if economic growth implies increasing pollution (‘brown growth’). If, however, production becomes cleaner over time (‘green growth’) the equilibrium urbanization path reaches the efficient urbanization path after finite time without need of a coordinating mechanism. We also generalize these results by taking other forms of congestion and urban land markets into account.
    Keywords cities ; dynamic models ; land markets ; pollution ; urbanization
    Language English
    Dates of publication 2018-10
    Size p. 529-549.
    Publishing place Springer Netherlands
    Document type Article
    ZDB-ID 1479788-4
    ISSN 1573-1502 ; 0924-6460
    ISSN (online) 1573-1502
    ISSN 0924-6460
    DOI 10.1007/s10640-017-0172-1
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  3. Book ; Online: A market mechanism for sustainable and efficient resource use under uncertainty

    Quaas, Martin F / Winkler, Ralph

    (CESifo working paper : Category 9, Resource and environment economics ; no. 6524)

    2017  

    Abstract: Sustainability and efficiency are potentially conflicting social objectives in natural resource management. We propose a market mechanism to allocate use rights over a stochastic resource to private managers. The mechanism endogenously determines the ... ...

    Author's details Martin F. Quaas, Ralph Winkler
    Series title CESifo working paper : Category 9, Resource and environment economics ; no. 6524
    Abstract Sustainability and efficiency are potentially conflicting social objectives in natural resource management. We propose a market mechanism to allocate use rights over a stochastic resource to private managers. The mechanism endogenously determines the maximal tenure length guaranteeing that the sustainability goal is obeyed for sure over the entire period. In addition, the mechanism achieves efficiency, i.e. it maximizes the expected present value of resource rents that accrue to society. Potential applications include improved fishing agreements between developing countries and distant-water fishing fleets.
    Keywords auctioning-refunding-mechanism ; efficient resource allocation ; renewable resources ; stochastic resource dynamics ; sustainability
    Language English
    Size 1 Online-Ressource (circa 27 Seiten)
    Edition This version: June 2017
    Publisher CESifo, Center for Economic Studies & Ifo Institute
    Publishing place Munich
    Document type Book ; Online
    Database ECONomics Information System

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  4. Book ; Article ; Online: Carbon dioxide removal in a global analytic climate economy

    Meier, Felix / Rickels, Wilfried / Quaas, Martin F. / Traeger, Christian

    2022  

    Abstract: Net-zero climate policies foresee deployment of atmospheric carbon dioxide removal wit geo-logical, terrestrial, or marine carbon storage. While terrestrial and geological storage would be governed under the framework of national property rights, marine ... ...

    Abstract Net-zero climate policies foresee deployment of atmospheric carbon dioxide removal wit geo-logical, terrestrial, or marine carbon storage. While terrestrial and geological storage would be governed under the framework of national property rights, marine storage implies that carbon is transferred from one global common, the atmosphere, to another global common, the ocean, in particular if storage exceeds beyond coastal applications. This paper investigates the option of carbon dioxide removal (CDR) and storage in different (marine) reservoir types in an analytic climate-economy model, and derives implications for optimal mitigation efforts and CDR deployment. We show that the introduction of CDR lowers net energy input and net emis-sions over the entire time path. Furthermore, CDR affects the Social Cost of Carbon (SCC) via changes in total economic output but leaves the analytic structure of the SCC unchanged. In the first years after CDR becomes available the SCC is lower and in later years it is higher com-pared to a standard climate-economy model. Carbon dioxide emissions are first higher and then lower relative to a world without CDR. The paper provides the basis for the analysis of decentralized and potentially non-cooperative CDR policies.
    Keywords ddc:330 ; Q54 ; carbon dioxide removal ; climate change ; integrated assessment ; social cost of carbon ; optimal carbon tax
    Subject code 333
    Language English
    Publisher Kiel: Kiel Institute for the World Economy (IfW Kiel)
    Publishing country de
    Document type Book ; Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article: Biodiversity and optimal multi-species ecosystem management

    Bertram, Christine / Quaas, Martin F

    Environmental & resource economics : the official journal of the European Association of Environmental and Resource Economists Vol. 67, No. 2 , p. 321-350

    2017  Volume 67, Issue 2, Page(s) 321–350

    Author's details Christine Bertram, Martin F. Quaas
    Keywords Biodiversity ; Ecosystem management ; Fishery ; Ecological-economic modeling ; Marine resources ; Baltic sea
    Language English
    Publisher Springer
    Publishing place Dordrecht
    Document type Article
    ZDB-ID 1121258-5 ; 1479788-4
    ISSN 1573-1502 ; 0924-6460
    ISSN (online) 1573-1502
    ISSN 0924-6460
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  6. Book ; Online ; Thesis: rippling of human-caused disturbances through complex food webs

    Werner, Alexandra [Verfasser] / Brose, Ulrich [Gutachter] / Quaas, Martin F. [Gutachter] / Valdovinos, Fernanda S. [Gutachter]

    2023  

    Author's details Alexandra Werner ; Gutachter: Ulrich Brose, Martin F. Quaas, Fernanda S. Valdovinos
    Keywords Biowissenschaften, Biologie ; Life Science, Biology
    Subject code sg570
    Language English
    Publisher Friedrich-Schiller-Universität Jena
    Publishing place Jena
    Document type Book ; Online ; Thesis
    Database Digital theses on the web

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  7. Article: Moral Suasion and the Private Provision of Public Goods: Evidence from the COVID-19 Pandemic.

    Bos, Björn / Drupp, Moritz A / Meya, Jasper N / Quaas, Martin F

    Environmental & resource economics

    2020  Volume 76, Issue 4, Page(s) 1117–1138

    Abstract: We study how moral suasion that appeals to two major ethical theories, Consequentialism and Deontology, affects individual intentions to contribute to a public good. We use the COVID-19 pandemic as an exemplary case where there is a large gap between ... ...

    Abstract We study how moral suasion that appeals to two major ethical theories, Consequentialism and Deontology, affects individual intentions to contribute to a public good. We use the COVID-19 pandemic as an exemplary case where there is a large gap between private and social costs and where moral suasion has been widely used as a policy instrument. Based on a survey experiment with a representative sample of around 3500 Germans at the beginning of the pandemic, we study how moral appeals affect contributions with low and high opportunity costs, hand washing and social distancing, to reduce the infection externality as well as the support for governmental regulation. We find that Deontological moral suasion, appealing to individual moral duty, is effective in increasing planned social distancing and hand-washing, while a Consequentialist appeal only increases planned hand-washing. Both appeals increase support for governmental regulation. Exploring heterogeneous treatment effects reveals that younger respondents are more susceptible to Deontological appeals. Our results highlight the potential of moral appeals to induce intended private contributions to a public good or the reduction of externalities, which can help to overcome collective action problems for a range of environmental issues.
    Keywords covid19
    Language English
    Publishing date 2020-08-17
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1479788-4
    ISSN 1573-1502 ; 0924-6460
    ISSN (online) 1573-1502
    ISSN 0924-6460
    DOI 10.1007/s10640-020-00477-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: The social cost of contacts: Theory and evidence for the first wave of the COVID-19 pandemic in Germany.

    Quaas, Martin F / Meya, Jasper N / Schenk, Hanna / Bos, Björn / Drupp, Moritz A / Requate, Till

    PloS one

    2021  Volume 16, Issue 3, Page(s) e0248288

    Abstract: Building on the epidemiological SIR model, we present an economic model with heterogeneous individuals deriving utility from social contacts creating infection risks. Focusing on social distancing of individuals susceptible to an infection we ... ...

    Abstract Building on the epidemiological SIR model, we present an economic model with heterogeneous individuals deriving utility from social contacts creating infection risks. Focusing on social distancing of individuals susceptible to an infection we theoretically characterize the gap between private and social cost of contacts. Our main contribution is to quantify this gap by calibrating the model with unique survey data from Germany on social distancing and impure altruism from the beginning of the COVID-19 pandemic. The optimal policy is to drastically reduce contacts at the beginning to almost eradicate the epidemic and keep them at levels that contain the pandemic at a low prevalence level. We find that also in laissez faire, private protection efforts by forward-looking, risk averse individuals would have stabilized the epidemic, but at a much higher prevalence of infection than optimal. Altruistic motives increase individual protection efforts, but a substantial gap to the social optimum remains.
    MeSH term(s) Adult ; Aged ; COVID-19/economics ; COVID-19/epidemiology ; COVID-19/pathology ; COVID-19/virology ; Cost of Illness ; Female ; Germany/epidemiology ; Humans ; Male ; Middle Aged ; Models, Theoretical ; Physical Distancing ; SARS-CoV-2/isolation & purification ; Surveys and Questionnaires
    Language English
    Publishing date 2021-03-19
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0248288
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  9. Book ; Online: Substitutability and the social cost of carbon in a solvable growth model with irreversible climate change

    Quaas, Martin F / Bröcker, Johannes

    (Economics working paper / Christian-Albrechts-Universität Kiel, Department of Economics ; no 2016-09)

    2016  

    Abstract: We develop an overlapping generations endogenous growth model with stocks of produced capital, human capital, a non-renewable resource, and irreversibly accumulated greenhouse gases in deterministic and stochastic versions. The model allows for analyzing ...

    Author's details by Martin F. Quaas and Johannes Bröcker
    Series title Economics working paper / Christian-Albrechts-Universität Kiel, Department of Economics ; no 2016-09
    Abstract We develop an overlapping generations endogenous growth model with stocks of produced capital, human capital, a non-renewable resource, and irreversibly accumulated greenhouse gases in deterministic and stochastic versions. The model allows for analyzing different elasticities of substitution. We present a full analytical solution and characterization of the transition dynamics. We show that, as a rule of thumb, the social cost of carbon grow at a rate equal to the economy's growth rate divided by the elasticity of substitution. We analytically study sensitivity of the social cost of carbon with respect to key parameters: the intergenerational discount rate, the elasticity of substitution, and climate uncertainty. We show that the social cost of carbon explode at a finite level of log-normally distributed climate uncertainty. We illustrate results in a calibrated version of the model.
    Keywords overlapping generations ; substitutes vs. complements ; stochastic resource dynamics ; optimum growth ; climate policy
    Language Undetermined
    Size 1 Online-Ressource (circa 34 Seiten), Illustrationen
    Edition This version: July 1, 2016
    Publisher Universität, Department of Economics
    Publishing place Kiel
    Document type Book ; Online
    Database ECONomics Information System

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  10. Article ; Online: Intertemporal Distribution, Suffciency, and the Social Cost of Carbon

    Hänsel, Martin C. / Quaas, Martin F.

    2018  

    Abstract: We explore how the intertemporal distribution of well-being affects the social cost of carbon. In contrast to the literature that studies parameters of a particular social welfare function, such as the discount rate, we shift the focus and directly ... ...

    Abstract We explore how the intertemporal distribution of well-being affects the social cost of carbon. In contrast to the literature that studies parameters of a particular social welfare function, such as the discount rate, we shift the focus and directly assume a parametric form for the intertemporal distribution of well-being. This has the advantage of avoiding explicit discounting choices, which has initiated much debate. Specifically, we consider a set of intertemporal distributions that reach a pre-specified steady-state level of "sufficient" well-being, or equivalently, after a pre-specified "end-of-growth horizon". We numerically illustrate our results in DICE and find that the social cost of carbon increases over-proportionally with the sufficiency level of well-being. While the social cost of carbon in 2015 is US$ 7 if the sufficiency level is four-fold the present level, it is US$ 30 if the sufficiency level is 15-fold and US$ 100 if the sufficiency level is 26-fold the present level. This shows in a transparent way how conceptions of intergenerational distributive justice drive the social cost of carbon.
    Keywords ddc:330 ; Q01 ; Q54 ; H21 ; C61 ; D31 ; D91 ; climate change ; social cost of carbon ; optimal tax ; DICE ; optimal growth ; sustainability ; social welfare function ; discounting
    Subject code 300 ; 338
    Language English
    Publisher Amsterdam: Elsevier
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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