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We develop a framework where mismatch between vacancies and job seekers across sectors translates into higher unemployment by lowering the aggregate job-finding rate. We use this framework to measure the contribution of mismatch to the recent rise in U.S. unemployment by exploiting two sources of cross-sectional data on vacancies, JOLTS and HWOL, a new database covering the universe of online U.S. job advertisements. Mismatch across industries and occupations explains at most 1/3 of the total observed increase in the unemployment rate, whereas geographical mismatch plays no apparent role. The share of the rise in unemployment explained by occupational mismatch is increasing in the education level.
This book looks at the future of advertising from the perspective of pervasive computing. Pervasive computing encompasses the integration of computers into everyday devices, like the covering of surfaces with interactive displays and networked mobile phones. Advertising is the communication of sponsored messages to inform, convince, and persuade to buy. We believe that our future cities will be digital, giving us instant access to any information we need everywhere, like at bus stops, on the sidewalk, inside the subway and in shopping malls. We will be able to play with and change the appearance of our cities effortlessly, like making flowers grow along a building wall or changing the colour of the street we are in. Like the internet as we know it, this digitalization will be paid for by adverts, which unobtrusively provide us suggestions for nearby restaurants or cafés. If any content annoys us, we will be able to effortlessly say so and change it with simple gestures, and content providers and advertisers will know what we like and be able to act accordingly. This book presents the technological foundations to make this vision a reality.
The Routledge International Handbook of Complexity Economics covers the historical developments and early concerns of complexity theorists and brings them into engagement with the world today. In this volume, a distinguished group of international scholars explore the state of the art of complexity economics, and how it may deliver new and relevant insights to the challenges of the 21st century. Complexity science started in 1899 when Henri Poincaré described the three-body problem. The first approaches in economics emerged somewhat later, in the 1980s, driven by the Brussels-Austin school. Since then, complexity economics has gone through numerous developments: departing from linear simpli...