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Edited Book

Quellsystem
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Monograph

Quellsystem
I3V
Quellsystem Entität-Id
134.67
Quellsystem Entität
JB_LIT_ARTEN
Importschlüssel
I3V_JB_LIT_ARTEN_134.67
Plural
Monographs
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Large Language Models, Central Bank Communication, and Financial Stability

Project Description

Communication by the Federal Reserve (Fed) plays a crucial role in shaping financial markets and regulatory expectations. This research project uses Large Language Models (LLMs) to systematically extract whether approximately 11,400 Fed speeches (1993-2025) signal a restrictive ("tight") or accommodative ("loose") stance on financial stability-following the methodology of Bybee et al. (2023).

Based on these classifications, a monthly Belief Index is constructed, capturing the average tone of Fed communication regarding financial stability. To enable causal inference, the index is purged of predictable components: a predictability regression following Swanson & Bauer (2023) removes the influence of prior financial market and macroeconomic variables (including stock returns, interest rate spreads, VIX, and NFCI). The resulting Belief Surprise Index captures the genuine informational content of the speeches.

The research addresses the following questions:
(1) How reliably can LLMs classify the stance of Fed speeches on financial stability?

(2) What are the causal effects of unexpected changes in Fed communication on bank stocks, bond yields, and financial spreads?

(3) How do short-term market reactions differ from longer-term effects?

The findings provide insights into the effectiveness of central bank communication as a tool for financial stability and are relevant for regulators, market participants, and monetary policy research.

Essays on Cryptocurrency Market Dynamics: Market Structure, Sentiment, and Connectedness

Project Description

The proposed dissertation is centered on the following overarching research question: To what extent do cryptocurrency prices respond to risks associated with their underlying technological design?

The first paper of this dissertation explores non-standard financial risks that arise in cryptocurrencies due to their technological design by examining how governance disputes are resolved through hard forking in decentralized blockchains. Specifically, the paper provides insights on the immediate effects on returns, trading volume, and volatility of the main blockchain.

The second paper examines spillover risks between the parent blockchain and successful hard forks over an extended time horizon following these governance disputes. In particular, this paper examines whether governance disputes resolved through technological divergence are sufficient to separate networks or whether they continue to influence each other`s price formation.

The third paper examines the market reactions stemming from the two main mechanisms used to implement planned and coordinated protocol upgrades. More precisely, it focuses on protocol upgrades implemented through hard and soft forks. Finally, the fourth paper examines speculative behavior as a central source of risk, given that many cryptocurrencies are not backed by tangible assets due to their technical design. Concretely, this paper proposes a forward-looking sentiment gauge.

Overall, this proposed dissertation provides insights into crypto-specific risks with implications for improving risk management practices, trading strategies, and policy recommendations.
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