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Based on multiple surveys, the present book gives valuable insights into the factors driving Social Network Site usage behavior for both practitioners and academics. By empirically evaluating multiple influence factors, it contributes to the current body of knowledge on Social Network Site usage behavior and provides multiple practical implications for Social Network Site service providers, advertisers, etc. Contents The Hedonic and Utilitarian Motivations of Social Network Site Usage The Influence of Perceived Belonging and Perceived Privacy Risk on Social Network Site Usage Privacy Protecting Behavior in Social Network Sites Drivers of Sharing and Receiving Usage on Social Network Sites Target Groups Students and researchers in the fields of information systems and marketing Executives in the fields of information systems and marketing The Author Claus-Peter H. Ernst is a professor of information systems and business administration in Frankfurt am Main. He obtained his doctorate degree in business administration at the Johannes Gutenberg University Mainz under the supervision of Prof. Dr. Franz Rothlauf.

Economics/Management Science. --- Innovation/Technology Management. --- Marketing. --- Economics. --- Economie politique --- Marketing --- Management --- Business & Economics --- Management Theory --- Social networks --- Social sciences --- Online social networks --- Research. --- Network analysis. --- Electronic social networks --- Social networking Web sites --- Network analysis (Social sciences) --- Networking, Social --- Networks, Social --- Social networking --- Social support systems --- Support systems, Social --- Business. --- Management. --- Industrial management. --- Business and Management. --- Social media --- Sociotechnical systems --- Web sites --- Interpersonal relations --- Cliques (Sociology) --- Microblogs --- Consumer goods --- Domestic marketing --- Retail marketing --- Retail trade --- Industrial management --- Aftermarkets --- Selling --- Administration --- Industrial relations --- Organization --- Business administration --- Business enterprises --- Business management --- Corporate management --- Corporations --- Industrial administration --- Management, Industrial --- Rationalization of industry --- Scientific management --- Business --- Industrial organization

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Understanding star formation is one of the key fields in present-day astrophysics. This book treats a wide variety of the physical processes involved, as well as the main observational discoveries, with key points being discussed in detail. The current star formation in our galaxy is emphasized, because the most detailed observations are available for this case. The book presents a comparison of the various scenarios for star formation, discusses the basic physics underlying each one, and follows in detail the history of a star from its initial state in the interstellar gas to its becoming a condensed object in equilibrium. Both theoretical and observational evidence to support the validity of the general evolutionary path are presented, and methods for comparing the two are emphasized. The author is a recognized expert in calculations of the evolution of protostars, the structure and evolution of disks, and stellar evolution in general. This book will be of value to graduate students in astronomy and astrophysics as well as to active researchers in the field.

Stars -- Evolution. --- Stars -- Formation -- Congresses. --- Stars -- Formation. --- Stars. --- Supergiant stars -- Congresses. --- Stars --- Astronomy & Astrophysics --- Physical Sciences & Mathematics --- Astrophysics --- Formation --- Evolution --- Formation. --- Birth, Stellar --- Formation, Star --- Formation, Stellar --- Stellar birth --- Stellar formation --- Physics. --- Observations, Astronomical. --- Astronomy --- Astrophysics. --- Space sciences. --- Astrophysics and Astroparticles. --- Astronomy, Observations and Techniques. --- Extraterrestrial Physics, Space Sciences. --- Observations. --- Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics). --- Astronomical physics --- Cosmic physics --- Physics --- Astronomy—Observations. --- Science and space --- Space research --- Cosmology --- Science --- Astronomical observations --- Observations, Astronomical

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This book collects multiple research articles studying the factors influencing wearable device usage. Based on multiple empirical studies, which research different kinds of wearable devices such as smartwatches, activity trackers, and smartglasses, potential drivers of wearable device usage are identified and evaluated. Overall, the book provides novel and important insights for both practitioners and academics, highlights their various practical implications for the development and marketing of wearable devices and offers outlooks on further research directions.

Business. --- Marketing. --- Information technology. --- Business --- Computers and civilization. --- Business and Management. --- IT in Business. --- Computers and Society. --- Data processing. --- Smart materials. --- Wearable technology. --- Wearable devices --- Wearable electronics --- Wearable tech --- Wearables (Wearable technology) --- Adaptive materials --- Intelligent materials --- Sense-able materials --- Miniature electronic equipment --- Smart materials --- Flexible electronics --- Materials --- Computer science. --- Informatics --- Science --- Consumer goods --- Domestic marketing --- Retail marketing --- Retail trade --- Industrial management --- Aftermarkets --- Selling --- IT (Information technology) --- Technology --- Telematics --- Information superhighway --- Knowledge management --- Marketing --- Business—Data processing. --- Civilization and computers --- Civilization

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Growing Public examines the question of whether social policies that redistribute income impose constraints on economic growth. Taxes and transfers have been debated for centuries, but only now can we get a clear view of the whole evolution of social spending. What kept prospering nations from using taxes for social programs until the end of the nineteenth century? Why did taxes and spending then grow so much, and what are the prospects for social spending in this century? Why did North America become a leader in public education in some ways and not others? Lindert finds answers in the economic history and logic of political voice, population aging, and income growth. Contrary to traditional beliefs, the net national costs of government social programs are virtually zero. This book not only shows that no Darwinian mechanism has punished the welfare states, but uses history to explain why this surprising result makes sense. Contrary to the intuition of many economists and the ideology of many politicians, social spending has contributed to, rather than inhibited, economic growth.

Business, Economy and Management --- Economics --- AA / International- internationaal --- 330.580 --- 202 --- 368.40 --- Gecontroleerde economie. Geleide economie. Welvaarststaat. Algemeenheden. --- Sociale organisatie. --- Sociale voorzorg en verzekeringen. Sociale zekerheid: algemeenheden. --- Government spending policy --- Income distribution --- Transfer payments --- Welfare economics --- 338 <09> --- 338 <09> Economische geschiedenis --- Economische geschiedenis --- Economic policy --- Social policy --- Government transfer payments --- Payments, Transfer --- Expenditures, Public --- National income --- Distribution of income --- Income inequality --- Inequality of income --- Distribution (Economic theory) --- Disposable income --- Public spending policy --- Spending policy, Government --- Finance, Public --- Full employment policies --- Unfunded mandates --- History --- Accounting --- Government policy --- Gecontroleerde economie. Geleide economie. Welvaarststaat. Algemeenheden --- Sociale organisatie --- Sociale voorzorg en verzekeringen. Sociale zekerheid: algemeenheden --- Government spending policy - History - Case studies --- Income distribution - History - Case studies --- Transfer payments - History - Case studies --- Welfare economics - History - Case studies

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Growing Public examines the question of whether social policies that redistribute income impose constraints on economic growth. What kept prospering nations from using taxes for social programs until the end of the nineteenth century? Why did taxes and spending then grow so much, and what are the prospects for social spending in this century? Why did North America become a leader in public education in some ways and not others? Lindert finds answers in the economic history and logic of political voice, population ageing, and income growth. Contrary to traditional beliefs, the net national costs of government social programs are virtually zero. This book not only shows that no Darwinian mechanism has punished the welfare states, but uses history to explain why this surprising result makes sense. Contrary to the intuition of many economists and the ideology of many politicians, social spending has contributed to, rather than inhibited, economic growth.

338 <09> --- AA / International- internationaal --- 330.580 --- 202 --- 368.40 --- Economische geschiedenis --- Gecontroleerde economie. Geleide economie. Welvaarststaat. Algemeenheden. --- Sociale organisatie. --- Sociale voorzorg en verzekeringen. Sociale zekerheid: algemeenheden. --- Government spending policy --- Income distribution --- Transfer payments --- Welfare economics --- History --- 338 <09> Economische geschiedenis --- Gecontroleerde economie. Geleide economie. Welvaarststaat. Algemeenheden --- Sociale organisatie --- Sociale voorzorg en verzekeringen. Sociale zekerheid: algemeenheden --- Business, Economy and Management --- Economics --- Economic policy --- Social policy --- Government transfer payments --- Payments, Transfer --- Expenditures, Public --- National income --- Distribution of income --- Income inequality --- Inequality of income --- Distribution (Economic theory) --- Disposable income --- Public spending policy --- Spending policy, Government --- Finance, Public --- Full employment policies --- Unfunded mandates --- Accounting --- Government policy