Cao, Nguyen Que An: Market expectations, public information and uncertainty resolution in agricultural commodity and equity markets. - Bonn, 2023. - Dissertation, Rheinische Friedrich-Wilhelms-Universität Bonn.
Online-Ausgabe in bonndoc: https://nbn-resolving.org/urn:nbn:de:hbz:5-73297
@phdthesis{handle:20.500.11811/11183,
urn: https://nbn-resolving.org/urn:nbn:de:hbz:5-73297,
author = {{Nguyen Que An Cao}},
title = {Market expectations, public information and uncertainty resolution in agricultural commodity and equity markets},
school = {Rheinische Friedrich-Wilhelms-Universität Bonn},
year = 2023,
month = dec,

note = {The Efficient Market Hypothesis (EMH) states that price movements result from changes in market expectations when new information becomes available. This thesis focuses on such revisions of expectations around the releases of scheduled public announcements containing relevant information regarding market fundamentals. Specifically, the thesis investigates the role of USDA announcements in the price discovery processes in agricultural commodity and equity markets in the last fifteen years. The three studies conducted offer both novel empirical findings and methodological contributions to the extant literature.
The first study provides a thorough examination of the evolution of forward-looking uncertainty and sentiment in corn and soybean markets (as captured by Option-implied Volatility – Ivol) around the announcement days of four important groups of USDA reports. It shows that the reports still play a crucial role in resolving pre-event market uncertainty and sentiment. The scope of effects depends on the extent to which the reports surprise the market, as well as the pre-existing uncertainty and sentiment in market expectations – proxied by different characteristics of the pre-event analyst forecast distribution.
The second study reveals that – even though USDA announcements do not have a broad impact on U.S. stock markets – the reports do cause significant reactions in stock prices of food-sector companies. The sign and magnitudes of reactions is determined by how and how much the news component in the reports affects the expected cash-flows of firms, and whether the effect is on expected cash in-flows (i.e., revenues) or out-flows (i.e., input costs).
The last part of the thesis develops an innovative method to tease out the ex-post surprise component of scheduled public announcements from the pre-event market expectations without relying on pre-event analyst surveys. The methodology combines the theoretical foundation of EMH and the flexibility of nonparametric Machine Learning (ML) techniques to provide a theoretically consistent yet highly flexible method to extract ex-ante market surprises that can be employed in various market settings. An application to the USDA Crop Progress and Condition reports (CPCRs) demonstrates that the framework can effectively identify the best proxy for post-release market surprises among a large set of possible prediction error outcomes generated by ML algorithm. The application also reveals that the CPCRs still provide a substantial amount of new information beyond what the market anticipates, despite recent advancements in data analytics. Through the significant market reactions to this news component, it is evident that the informational content of the reports is still valuable to market participants.},

url = {https://hdl.handle.net/20.500.11811/11183}
}

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