Grebe, Moritz; Kandemir, Sinem; Tillmann, Peter - In: Wirtschaftsdienst 103 (2023) 7, pp. 500-502
We collect more than eight million German-language tweets on the war in Ukraine and use a machine learning approach toconstruct a daily index of uncertainty about the war. In an empirical model, we show that fluctuations in uncertainty have strong effectson financial markets and real economic...