Introduction -- Part I: Approaching the Fourth Sector -- The Fourth Sector: The Future of Business, for a Better Future -- Cultivating the Fourth Sector: Active Citizenship and Governance in the Urban Change Process -- Municipal Policies in Spain to Promote Sustainable Development Goals (SDGs): An Approach to the Fourth Sector -- Disability as a Driving Force of Sustainable Business Models in the Fourth Sector -- Reflections on Hybrid Corporations, Social Entrepreneur, and New Generations -- Part II: Social Innovation: Hybrid Models in the Fourth Sector -- Social Innovation in Theory and Practice: European Policies, Strategies and Experiences -- Social Innovation for Sustainability and the Common Good in Ecosystems of the Fourth Sector: The Case of Distribution Through Alternative Food Networks in Valencia (Spain) -- Energy Cooperatives: Socially Innovative Cooperative Enterprises in the Spanish Renewable Energy Industry -- The Case of "La Hormiga Verde": Recycling Electronic Waste (e-Waste) as a Paradigmatic Example of a New Entrepreneurial Trend in the Fourth Sector -- Managing Creative Industries Through Cooperation: An Evidence of New Business Models in the Fourth Sector -- Part III: Insights and New Trends -- New Trends in Marketing Aimed at the Fourth Sector in the Fashion Industry -- Effects of the Orange Economy on Social Entrepreneurship in the City of Medellin -- Understanding Sustainable Entrepreneurship in the Fourth Sector Through Integrated Balances: The Case of Uruguay -- May "For-Benefits" Businesses Help Sustainability in Future Healthcare Services? -- Beyond Business: Understanding the Foundations and Practices of Corporate Activism.

"The fourth sector" is a relatively new sector that consists of for-benefit organizations that combine market-based approaches of the private sector with the social and environmental aims of the public and non-profit sectors. This book examines trends of entrepreneurship in the fourth sector, describes specific ecosystems fostering new ventures around the world, and characterizes the most common and innovative business models. It covers as well the main effects, among others, of technological change, innovation, and institutional behavior on the sector in the last years. .