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  2. Communication studies - Wikipedia

    en.wikipedia.org/wiki/Communication_studies

    [2] [3] Communication studies is a social science that uses various methods of empirical investigation and critical analysis to develop a body of knowledge that encompasses a range of topics, from face-to-face conversation at a level of individual agency and interaction to social and cultural communication systems at a macro level.

  3. Social contract - Wikipedia

    en.wikipedia.org/wiki/Social_contract

    Although the antecedents of social contract theory are found in antiquity, in Greek and Stoic philosophy and Roman and Canon Law, the heyday of the social contract was the mid-17th to early 19th centuries, when it emerged as the leading doctrine of political legitimacy.

  4. Anthony Giddens - Wikipedia

    en.wikipedia.org/wiki/Anthony_Giddens

    Anthony Giddens, Baron Giddens MAE (born 18 January 1938) is an English sociologist who is known for his theory of structuration and his holistic view of modern societies. He is considered to be one of the most prominent modern sociologists and is the author of at least 34 books, published in at least 29 languages, issuing on average more than one book every year.

  5. Social media marketing - Wikipedia

    en.wikipedia.org/wiki/Social_media_marketing

    Social media marketing is the use of social media platforms and websites to promote a product or service. [1] Although the terms e-marketing and digital marketing are still dominant in academia, social media marketing is becoming more popular for both practitioners and researchers.

  6. Life expectancy - Wikipedia

    en.wikipedia.org/wiki/Life_expectancy

    Future trends in life expectancy have huge implications for old-age support programs (like U.S. Social Security and pension) since the cash flow in these systems depends on the number of recipients who are still living (along with the rate of return on the investments or the tax rate in pay-as-you-go systems). With longer life expectancies, the ...