Brexit. Stock Market Reactions and Short-Term Reward of Geographic Business Diversification on British and European Index and Industry Level

Table of Contents

1 Introduction

2 Literature Review

2.1 Multinationality

2.2 Industries

2.2.1 Energy

2.2.2 Basic Materials

2.2.3 Industrials

2.2.4 Consumer Cyclicals

2.2.5 Consumer Non-Cyclicals

2.2.6 Financial Sector

2.2.7 Healthcare

2.2.8 Technology

2.2.9 Telecommunication Services

2.2.10 Utilities

3 Data and Methodology

3.1 Stock Market Reactions and Related Losses

3.1.1 Structural Break

3.1.2 Difference-in-Differences

3.2 Multinationality

3.2.1 Event Study

3.2.2 Hypothesis Testing - Statistical Analysis

4 Empirical Results

4.1 Stock Market Reactions and Related Losses

4.1.1 Structural Break of Stock and Forex Markets

4.1.2 Difference-in-Differences

4.2 Multinationality Hypothesis on Index Level

4.2.1 Event Study

4.2.2 Event Study - Exchange Rate Adjusted

4.2.3 Hypothesis Testing

4.3 Multinationality Hypothesis on Industry Level

4.3.1 Event Study

4.3.2 Mean Reversion

4.3.3 Hypothesis Testing

5 Conclusion

Research Objectives and Key Topics

This thesis examines the impact of the Brexit referendum on global stock and foreign exchange markets, specifically analyzing whether the political shock triggered structural breaks. The primary research goal is to assess whether geographic business diversification served as a shock absorber for firms, effectively mitigating adverse stock price reactions to this country-specific political risk.

• Analysis of structural breaks in British and European stock markets and major exchange rates using the Chow test and recursive models.
• Quantification of financial losses for key indices (FTSE 100, FTSE 250, EuroStoxx 600) using the Difference-in-Differences (DID) methodology.
• Evaluation of the multinationality hypothesis via event study methodology to determine if foreign involvement correlates with stock return resilience.
• Sector-specific analysis to understand how individual industries reacted to the Brexit vote and how firm-level characteristics influenced these reactions.

Excerpt from the Book

Summary of Chapters

1 Introduction: This chapter provides the background of the Brexit referendum and outlines the political and financial uncertainty surrounding the event, setting the stage for the research questions addressed in the thesis.

2 Literature Review: This section reviews existing academic literature regarding multinationality, diversification, and sector-specific implications of political shocks, establishing the theoretical framework for the hypothesis.

3 Data and Methodology: The methodology section details the structural break tests (Chow test), the Difference-in-Differences (DID) approach, and the event study framework used to analyze stock market behavior.

4 Empirical Results: This core chapter presents the statistical evidence on stock market reactions, quantifying losses and testing the hypothesis that multinational firms are less impacted by country-specific risks.

5 Conclusion: The final chapter summarizes the findings, confirming that while Brexit had significant impacts, geographic diversification generally provided a mitigating effect for investors against political shock.

Keywords

Brexit, Multinationality, Geographic Business Diversification, Event Study, Difference-in-Differences, Structural Break, Stock Market, Foreign Exchange, Political Risk, FTSE 100, FTSE 250, EuroStoxx 600, Market Efficiency, Abnormal Returns, Currency Depreciation

Frequently Asked Questions

What is the core focus of this research?

The research analyzes the financial consequences of the 2016 Brexit referendum on stock and currency markets, specifically investigating whether multinational companies were better shielded from the resulting political volatility.

Which key topics does the work cover?

The work covers market reactions to political shocks, the relationship between foreign business engagement and stock performance, sector-specific market behaviors, and the efficacy of different statistical models in capturing structural changes.

What is the primary objective of the study?

The primary objective is to test the hypothesis that higher levels of geographic business diversification reduce a firm's vulnerability to country-specific political risks, such as the Brexit vote.

Which scientific methods are utilized?

The thesis utilizes the Chow test and recursive Wald tests for structural breaks, the Difference-in-Differences (DID) approach for measuring losses, and event study methodology to evaluate abnormal returns.

What does the main body explore?

The main body explores the performance of various market indices and industries, provides a detailed literature review, explains the quantitative frameworks, and discusses the empirical results regarding firm-level internationalization.

Which keywords best characterize this research?

Key terms include Brexit, multinationality, geographic diversification, abnormal returns, structural break tests, and foreign exchange exposure.

How did the British stock market react to the referendum result?

The research finds that British stock markets experienced significant alterations in behavior, with the FTSE 100 and FTSE 250 incurring substantial losses, which were later corrected in part by exchange rate effects.

Did multinational companies outperform purely domestic firms?

Yes, the empirical results generally portend a positive relationship between the degree of multinationality and firm resilience, indicating that international involvement served as a shock absorber during the political event.

What role do exchange rates play in the analysis?

Exchange rates were critical to the study because the depreciation of the British Pound affected how foreign earnings were valued, making it necessary to use exchange-rate-adjusted returns to gauge the real impacts on firms.