Showing 1 - 10 of 396
This paper investigates the impact of news media information on improving short-term GDP growth forecasts by analyzing a large and unique corpus of 12.4 million news articles spanning from 1991 to 2018. We extract business cycle-related sentiment from each article using an annotated dataset from...
Persistent link: https://www.econbiz.de/10015211359
This paper investigates the factors that contributed to the proliferation of online COVID skepticism on Twitter across …-vax sentiment, represented by old "truthers" on Twitter, amplifies online COVID skepticism in local communities. Additionally …
Persistent link: https://www.econbiz.de/10014469533
The leading strategy for analyzing unstructured data uses two steps. First, latent variables of economic interest are estimated with an upstream information retrieval model. Second, the estimates are treated as "data" in a downstream econometric model. We establish theoretical arguments for why...
Persistent link: https://www.econbiz.de/10014574297
This paper explores the relationship between green bond markets and both green and conventional financial markets, while also evaluating their effectiveness as a climate finance instrument. Using the Thick Pen Measure of Association — a visually interpretable tool for analysing co-movement...
Persistent link: https://www.econbiz.de/10015398790
This paper quantifies the impact of online vaccine skepticism on pediatric vaccine uptake and health outcomes. We propose a novel methodology that combines Natural Language Processing and an instrumental variable strategy that leverages the intransitivity of the social network's connections. By...
Persistent link: https://www.econbiz.de/10014290094
major German media outlets by analyzing tweets of German Members of Parliament (MPs) on Twitter. For each news outlet under … MPs' relative number of Twitter referrals to that outlet. We find that three outlets are positioned on the left, and two …
Persistent link: https://www.econbiz.de/10012582006
. Analyzing 98,000 scientists on Twitter from 2016 to 2022 reveals significant divergence in expressed political opinions. An …
Persistent link: https://www.econbiz.de/10015061974
The availability of copious amounts of data produced by the increasing datification of our society is nowadays deemed an opportunity to produce timely and convenient statistical information. This paper shows the building of economic sentiment indexes from the texts of the most read economic...
Persistent link: https://www.econbiz.de/10013470345
We analyse the drivers of European Power Exchange (EPEX) wholesale electricity prices between 2012 and early 2022 using machine learning. The agnostic random forest approach that we use is able to reduce in-sample root mean square errors (RMSEs) by around 50% when compared to a standard linear...
Persistent link: https://www.econbiz.de/10013353419
This paper sheds new light on the role of communication for cartel formation. Using machine learning to evaluate free-form chat communication among firms in a laboratory experiment, we identify typical communication patterns for both explicit cartel formation and indirect attempts to collude...
Persistent link: https://www.econbiz.de/10013470283