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Lasse Gerrits and Robin Chang

Collaborating actors may pursue their individual goals while disregarding those of others. In the short run, they may benefit from such a singular strategy. However, long-term effects may be very different. Taking a longitudinal view and deploying some of the core mechanisms of evolutionary theory, this chapter explores the interplay between the creation of diversity in collaborative processes and the effects this has on such processes in the long run in terms of goal attainment by actors. Using cases studies from Switzerland and Germany, the chapter demonstrates that there is a reciprocal relationship between increased actor diversity and increased diversity of the problem definitions and solution definitions considered in the process. In turn, this creates more-broadly supported outcomes but, importantly, the capacity to sustain that diversity. If managed well, such reciprocal processes improve the inclusive fitness of all actors involved.

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Understanding Collective Decision Making

A Fitness Landscape Model Approach

Lasse Gerrits and Peter Marks

One of the main challenges facing contemporary society is to understand how people can make decisions together. Understanding Collective Decision Making builds on evolutionary theories and presents an analytical tool to analyse and visualise collective decision making. By combining theoretical research with real world case studies, the authors provide a coherent and conclusive solution to the often fragmented and dispersed literature on the subject.
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An uphill struggle

A Fitness Landscape Model Approach

Lasse Gerrits and Peter Marks

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Models of social evolution: fitness landscapes

A Fitness Landscape Model Approach

Lasse Gerrits and Peter Marks

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The transformation of fitness landscapes

A Fitness Landscape Model Approach

Lasse Gerrits and Peter Marks

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The model

A Fitness Landscape Model Approach

Lasse Gerrits and Peter Marks

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Memory of a dream: high-speed rail in the Netherlands

A Fitness Landscape Model Approach

Lasse Gerrits and Peter Marks

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Lasse Gerrits and Peter Marks

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Evolution in collective decision making

A Fitness Landscape Model Approach

Lasse Gerrits and Peter Marks

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The Evaluation of Complex Infrastructure Projects

A Guide to Qualitative Comparative Analysis

Lasse Gerrits and Stefan Verweij

Infrastructure projects are notoriously hard to manage so it is important that society learns from the successes and mistakes made over time. However, most evaluation methods run into a conundrum: either they cover a large number of projects but have little to say about their details, or they focus on detailed single-case studies with little in terms of applicability elsewhere. This book presents Qualitative Comparative Analysis (QCA) as an alternative evaluation method that solves the conundrum to enhance learning.