ISSN: 2056-3736 (Online Version) | 2056-3728 (Print Version)

Twitter‘s happiness sentiment index impacts on financial markets: an integrated overview of empirical findings

Νikolaos A. Kyriazis

Correspondence: Νikolaos A. Kyriazis,

Department of Economics, University of Thessaly, 28th October 78 Street, PC:38333, Volos, Greece.

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This survey paper investigates the empirical findings of academic work that explores the nexus between the highly innovative Twitter happiness sentiment index and a range of financial assets. An integrated overview of econometric outcomes and the relevant investment policy implications are provided. It is revealed that investor happiness reinforces the safe haven abilities of gold. Moreover, major stock indices are highly influenced by the happiness index especially at higher quantiles. Reverse causality between the happiness index and stock indices is also detected but in a weaker level. This survey contributes to better understanding investment decisions based on behavioural finance and provides evidence about the nexus of investor sentiment estimation with the financial sector nowadays.


  Investor happiness, Investor sentiment, Twitter, Survey, Gold, Stock prices.


Barberis, N., & Thaler, R. (2003). A survey of behavioral finance. Handbook of the Economics of Finance,      1, 1053-1128.Baur, D. G., & McDermott, T. K. (2010). Is gold a safe haven? International evidence. Journal of Banking   & Finance, 34(8), 1886-1898.Beckmann, J., Berger, T., & Czudaj, R. (2015). Does gold act as a hedge or a safe haven for stocks? A smooth transition approach. Economic Modelling, 48, 16-24.Bonato, M., Gkillas, K., Gupta, R., & Pierdzioch, C. (2020). A Note on InvestorHappiness and the Predictability of Realized Volatility of Gold. Finance Research Letters, 101614.Bonato, M., Gkillas, K., Gupta, R., & Pierdzioch, C. (2020b). Investor happiness and predictability of the realized volatility of oil price. Sustainability, 12(10), 4309Bredin, D., Conlon, T., & Potì, V. (2015). Does gold glitter in the long-run? Gold as a hedge and safe haven across time and investment horizon. International Review of Financial Analysis, 41, 320-328.Brown, G. W., & Cliff, M. T. (2004). Investor sentiment and the near-term stock market. Journal of empirical finance, 11(1), 1-27.Byström, H. (2020). Happiness and Gold Prices. Finance Research Letters, 101599. Chuang, C. C., Kuan, C. M., & Lin, H. Y. (2009). Causality in quantiles and dynamic stock return–volume relations. Journal of Banking & Finance, 33(7), 1351-1360.Corbet, S., Lucey, B., Urquhart, A., & Yarovaya, L. (2019). Cryptocurrencies as a financial asset: A systematic analysis. International Review of Financial Analysis, 62, 182-199.Corsi, F. (2009). A Simple Approximate Long-Memory Model of Realized Volatility. Journal of Financial Econometrics, 7(2), 174-196.De Bondt, W. F., Muradoglu, Y. G., Shefrin, H., & Staikouras, S. K. (2008). Behavioral finance: Quo vadis?. Journal of Applied Finance (Formerly Financial Practice and Education), 18(2).Diks, C., & Panchenko, V. (2006). A new statistic and practical guidelines for nonparametric Granger causality testing. Journal of Economic Dynamics and Control, 30(9-10), 1647-1669.Dutta, A., Das, D., Jana, R. K., & Vo, X. V. (2020). COVID-19 and oil market crash: Revisiting the safe haven property of gold and Bitcoin. Resources Policy, 69, 101816.Fama, E. F. (1998). Market efficiency, long-term returns, and behavioral finance. Journal of financial economics, 49(3), 283-306.Fisch, C., & Block, J. (2018). Six tips for your (systematic) literature review in business and management research. Management Review Quarterly, 68(2), 103-106.Granger, C. W. (1969). Investigating causal relations by econometric models and cross-spectral methods. Econometrica: journal of the Econometric Society, 424-438.Granger, C. W. (1988). Some recent development in a concept of causality. Journal of econometrics, 39(1-2), 199-211.Hirshleifer, D. (2015). Behavioral finance. Annual Review of Financial Economics, 7, 133-159.Hood, M., & Malik, F. (2013). Is gold the best hedge and a safe haven under changing stock market volatility?. Review of Financial Economics, 22(2), 47-52.Huang, B. N., Hwang, M. J., & Yang, C. W. (2008). Causal relationship between energy consumption and GDP growth revisited: a dynamic panel data approach. Ecological economics, 67(1), 41-54.Koenker, R., & Bassett Jr, G. (1978). Regression quantiles. Econometrica: journal of the Econometric Society, 33-50.Koenker, R., & Machado, J. A. (1999). GMM inference when the number of moment conditions is large. Journal of Econometrics, 93(2), 327-344.Königstorfer, F., & Thalmann, S. (2020). Applications of Artificial Intelligence in commercial banks–A research agenda for behavioral finance. Journal of Behavioral and Experimental Finance, 27, 100352.Kyriazis, N. A. (2019a). A survey on efficiency and profitable trading opportunities in cryptocurrency markets. Journal of Risk and Financial Management, 12(2), 67.Kyriazis, N. A. (2019b). A survey on empirical findings about spillovers in cryptocurrency markets. Journal of Risk and Financial Management, 12(4), 170.Kyriazis, N. A. (2020a). Herding behaviour in digital currency markets: An integrated survey and empirical estimation. Heliyon, 6(8), e04752.Kyriazis, N. A. (2020b). Is Bitcoin similar to gold? An integrated overview of empirical findings. Journal of Risk and Financial Management, 13(5), 88.Kyriazis, N. A. (2021a). The Nexus of Sophisticated Digital Assets with Economic Policy Uncertainty: A Survey of Empirical Findings and an Empirical Investigation. Sustainability, 13(10), 5383.Kyriazis, N. A. (2021b). Trade Policy Uncertainty Effects on Macro Economy and Financial Markets: An Integrated Survey and Empirical Investigation. Journal of Risk and Financial Management, 14(1), 41.Kyriazis, Ν. A. (2021c). The effects of geopolitical uncertainty on cryptocurrencies and other financial assets. SN Business & Economics, 1(1), 1-14.Lee, C. C., & Chen, M. P. (2020). Happiness sentiments and the prediction of cross-border country exchange-traded fund returns. The North American Journal of Economics and Finance, 54, 101254.Lee, W. Y., Jiang, C. X., & Indro, D. C. (2002). Stock market volatility, excess returns, and the role of investor sentiment. Journal of banking & Finance, 26(12), 2277-2299.Li, X., Shen, D., Xue, M., & Zhang, W. (2017). Daily happiness and stock returns: The case of Chinese company listed in the United States. Economic Modelling, 64, 496-501.Merkle, C., Egan, D. P., & Davies, G. B. (2015). Investor happiness. Journal of Economic Psychology, 49, 167-186.Mian, G. M., & Sankaraguruswamy, S. (2012). Investor sentiment and stock market response to earnings news. The Accounting Review, 87(4), 1357-1384.Naeem, M. A., Farid, S., Faruk, B., & Shahzad, S. J. H. (2020). Can happiness predict future volatility in stock markets?. Research in International Business and Finance, 54, 101298.Pan, W. F. (2020). Does Investor Sentiment Drive Stock Market Bubbles? Beware of Excessive Optimism!. Journal of Behavioral Finance, 21(1), 27-41.Papadamou, S., Kyriazis, Ν. A., & Tzeremes, P. G. (2019). Unconventional monetary policy effects on output and inflation: A meta-analysis. International Review of Financial Analysis, 61, 295-305.Papadamou, S., Siriopoulos, C., & Kyriazis, N. A. (2020). A survey of empirical findings on unconventional central bank policies. Journal of Economic Studies, 47(7), 1533-1577.Shiller, R. J. (2003). From efficient markets theory to behavioral finance. Journal of economic perspectives, 17(1), 83-104.Stracca, L. (2004). Behavioral finance and asset prices: Where do we stand?. Journal of economic psychology, 25(3), 373-405.Tetlock, P. C. (2007). Giving content to investor sentiment: The role of media in the stock market. The Journal of finance, 62(3), 1139-1168.Thaler, R. H. (1999). The end of behavioral finance. Financial Analysts Journal, 55(6), 12-17.Tranfield, D., Denyer, D., & Smart, P. (2003). Towards a methodology for developing evidence‐informed management knowledge by means of systematic review. British journal of management, 14(3), 207-222.Wen, X., & Cheng, H. (2018). Which is the safe haven for emerging stock markets, gold or the US dollar?. Emerging Markets Review, 35, 69-90.Xiao, Y., & Watson, M. (2019). Guidance on conducting a systematic literature review. Journal of Planning Education and Research, 39(1), 93-112.You, W., Guo, Y., & Peng, C. (2017). Twitter's daily happiness sentiment and the predictability of stock returns. Finance Research Letters, 23, 58-64.Zhao, R. (2019). Quantifying the correlation and prediction of daily happiness sentiment and stock return: The Case of Singapore. Physica A: Statistical Mechanics and its Applications, 533, 122020.Zhao, R. (2020a). Quantifying the cross sectional relation of daily happiness sentiment and return skewness: Evidence from US industries. Journal of Behavioral and Experimental Finance, 27, 100369.Zhao, R. (2020b). Quantifying the cross sectional relation of daily happiness sentiment and stock return: Evidence from US. Physic a A: Statistical Mechanics and its Applications, 538, 12262.