Table 15.

Themes new to each period

Period	Themes new to the period
2002–2006	Market, business, development, product, model, strategies, system, companies, economy, opportunities, partners, technology, economic, sustainable, corporate, cluster, entrepreneurs, management, potential, resources, network, infrastructure
2007–2010	Social, local, consumer, services, research, value, innovation, income, process, global, community, poverty, level, costs, study, price, poor
2011–2014	Use, approach, group, knowledge, activities, mobile, literature, key, case, relations, theory, water
2015–2018	Institutions, supply, capital, effects, entrepreneurship, impact, organizations, solutions, change, informal, environment, issues, skills, design, limited, operations, perspective, responsibility, formal, voids, specific, work, countries