TY - RPRT AU - Sarracino, Francesco AU - Greyling, Talita AU - O'Connor, Kelsey J. AU - Peroni, Chiara AU - Rossouw, StephaniƩ TI - A Year of Pandemic: Levels, Changes and Validity of Well-Being Data from Twitter. Evidence from Ten Countries PY - 2021/Nov/ PB - Institute of Labor Economics (IZA) CY - Bonn T2 - IZA Discussion Paper IS - 14903 UR - https://www.iza.org/publications/dp14903 AB - In this article, we describe how well-being changed during 2020 in ten countries, namely Australia, Belgium, France, Germany, Great Britain, Italy, Luxembourg, New Zealand, South Africa, and Spain. Our measure of well-being is the Gross National Happiness (GNH), a country-level index built applying sentiment analysis to data from Twitter. We aim to describe how GNH changed during the pandemic within countries, assess its validity as a measure of well-being, and analyse its correlations. We take advantage of a unique dataset of daily observations about GNH, generalised trust and trust in national institutions, fear concerning the economy, loneliness, infection rate, policy stringency and distancing. To assess the validity of the data sourced from Twitter, we exploit various survey data sources, such as the Eurobarometer and consumer satisfaction, and Big Data sources, such as Google Trends. Results indicate that sentiment analysis of tweets can provide reliable and timely information on well-being. This can be particularly useful to timely inform decision-making. KW - happiness KW - COVID-19 KW - Big Data KW - Twitter KW - Sentiment Analysis KW - well-being KW - public policy KW - trust KW - fear KW - loneliness ER -