Search for dissertations about: "dichotomous choice"

Showing result 1 - 5 of 9 swedish dissertations containing the words dichotomous choice.

  2. 1. The Uncertain Dichotomous Choice Model - Some Results

    Author : Antonio Maranon; Statistiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; hierarchy; chairman decisive rule; majority function; uncertain dichotomous choice model; collective decisional skill; Statistics; operations research; programming; actuarial mathematics; Statistik; operationsanalys; programmering; aktuariematematik;

    Abstract : A probabilistic framework used in studying collective decision making is the uncertain dichotomous choice model. The model is essentially characterized by two components: the organizational structure and the voting process. READ MORE

  4. 2. Choice, competition, and interactions between episodes of sexual selection

    Author : Charel Reuland; John Fitzpatrick; Ingo Schlupp; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; contest competition; sperm competition; mate choice; cryptic choice; sperm quality; reproductive status; social dominance; etologi; Ethology;

    Abstract : Choice and competition are essential parts of evolutionary biology. In an effort to pass their genes from one generation to the next, animals may carefully choose their mating partners, and/or compete for access to mates. READ MORE

  5. 3. The Economics of Community-Based Wildlife Conservation in Zimbabwe

    Author : Edwin Muchapondwa; Göteborgs universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; bio-economic; CAMPFIRE; common property; community; design principles; dichotomous choice; diversification; elephant nuisance; institutions; insurance; poaching; risk management; simple spike; wildlife conservation; wildlife-livestock conflict;

    Abstract : This thesis deals with the economics of community-based wildlife conservation in Zimbabwe. It consists of an introductory chapter and four self-contained chapters. Chapter 1 spells out the history of wildlife conservation leading to the inception of CAMPFIRE. Research issues at the core of the rest of the thesis are also highlighted. READ MORE

  6. 4. The link between brain size, cognitive ability, mate choice and sexual behaviour in the guppy (Poecilia reticulata)

    Author : Alberto Corral López; Niclas Kolm; Janette Boughman; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; sexual selection; artificial selection; brain evolution; optomotor test; decision-making; discrimination; assessment; optimal decisions; rational choice; behavioural flexibility; expensive tissue; predation; sex ratio; OSR; maintenance of variation; etologi; Ethology;

    Abstract : Competition over access for mates has led to the evolution of many striking examples of morphological traits and behaviour in animals. The rapid development of the sexual selection field in recent decades have dramatically advanced our understanding of what traits make individuals more successful in attracting mates and how preferences for mates evolve over time. READ MORE

  7. 5. Two Essays on Valuation of Marine Resources: Applications to Sweden

    Author : Björn Olsson; Göteborgs universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Paper 1: D61; Q26; Q51 Paper 2: D61; Q26;

    Abstract : Paper 1: Historical records show that the stock density of coastal cod (Gadus morhua) in the waters off the Swedish west coast is extremely low. In 2001 the stock size was two percent of the size in the 1970s. READ MORE