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1. Analysis of Istanbul Stock Market Returns Volatility with ARCH and GARCH Models

Author:
İpek M. Yurttagüler
Publication Date:
01-2024
Content Type:
Journal Article
Journal:
Istanbul Journal of Economics
Institution:
Istanbul University Faculty of Economics
Abstract:
In today’s world where globalization is intensely experienced, differences in risk perception, developments in capital markets, and the negativities faced in the markets due to uncertainty are very important when researching the structures of the stock markets, and therefore determining current volatilities. One of the biggest problems encountered is the inability to price stocks effectively. Therefore, estimating and modeling volatility becomes crucial. The diversity of the portfolio, created by international investors in the financial markets and the sustainability of their investment decisions, are closely related to the volatility variable. However, the fact that financial markets are more fragile in developing countries increases the importance of volatility. There are many different methods in the literature when estimating volatility. Due to the inadequacy of traditional time series models in estimating volatility, conditional heteroskedasticity models are used with ARCH and GARCH class models being frequently used. In this study, the series of daily opening values of the ISE100 Index covering from 02.01.2003 to 30.09.2022 was estimated using ARCH/GARCH models for volatility with the aim to determine which model has the higher explanatory power. According to the findings, the GARCH(1,1) model gave more meaningful results in explaining the ISE100 return volatility.
Topic:
Economics, Globalization, Stock Markets, and Volatility
Political Geography:
Turkey and Middle East

2. Pari Passu Lost and Found: The Origins of Sovereign Bankruptcy 1798-1873

Author:
Marc Flandreau
Publication Date:
06-2022
Content Type:
Working Paper
Institution:
Institute for New Economic Thinking (INET)
Abstract:
Verdicts returned by modern courts of justice in the context of sovereign debt lawsuits have upheld a ratable (proportional) interpretation of so-called “pari passu” clauses in debt contracts which, literally, promise creditors they will be dealt with equitably. Such verdicts have given individual creditors the right to interfere with payments to others, in situation where the sovereign had failed to make proportional payments. Contract originalists argue that this interpretation of pari passu clauses has no historical foundation. Historically, they claim, pari passu clauses never granted individual creditors a unilateral right to block payments to other bondholders assenting to a government debt restructuring proposal. This article shows this claim is incorrect. Drawing on novel archival research, it argues that pari passu clauses find one potent historical origin in the operation of a now forgotten sovereign bankruptcy tribunal, the London stock exchange. Under the law of the stock exchange, departure from ratable payments did create a unilateral right for individual creditors to interfere with sovereign debt discharges. In fact, ratable distributions provided the touchstone for the stock exchange sanctioned sovereign debt discharge system. What is more, sophisticated contract drafters availed themselves of the logic. The result was a weaponization of pari passu clauses, and their inscription into sovereign debt covenants in the 19th century. The article concludes that the modern debate on the role of clauses in sovereign debt contracts cannot be held without thorough reconsideration of the history of sovereign bankruptcy.
Topic:
Finance, Banking, Stock Markets, and Sovereign Debt
Political Geography:
United Kingdom, Europe, and England

3. The GameStop Episode: What Happened and What Does It Mean?

Author:
Allan M. Malz
Publication Date:
10-2021
Content Type:
Journal Article
Journal:
The Cato Journal
Institution:
The Cato Institute
Abstract:
The GameStop stock trading episode that began in January 2021 has been unprecedented in some ways, especially in the ability of market participants to organize collective action openly yet anonymously. In other ways, it’s been an unsurprising repetition of past experience. Financial markets are imperfect, they display many frictions, and the imperfect alignment of interests is a perpetual dilemma in designing both contracts and public policy.
Topic:
Regulation, Economy, Public Policy, and Stock Markets
Political Geography:
United States of America

4. GameStop and the Rise of Retail Trading

Author:
Jennifer J. Schulp
Publication Date:
10-2021
Content Type:
Journal Article
Journal:
The Cato Journal
Institution:
The Cato Institute
Abstract:
In January 2021, a curious event in the stock market caught the attention of the media, regulators, and the public. A well‐​known struggling company dominated the headlines, not for its business model, but for the meteoric rise of its stock price. GameStop Corp. started the year trading around $19.00 a share, a pretty robust share price for a company that had been trading below $5.00 as recently as August 2020. Yet, by the end of January, GameStop’s shares were trading at over $300, at one point hitting a high of $483. GameStop’s stock price has receded from those meteoric highs, but, as of late May, it continues to trade between $160 and $180 a share.
Topic:
Markets, Economy, Investment, Stock Markets, and Equity
Political Geography:
Global Focus

5. Financial Market Responses to Government COVID-19 Pandemic Interventions: Empirical Evidence from South-East and East Asia

Author:
Hai Anh La and Riyana Miranti
Publication Date:
04-2021
Content Type:
Research Paper
Institution:
Economic Research Institute for ASEAN and East Asia (ERIA)
Abstract:
This study investigates the impact of various government interventions on the spread of COVID-19 as well as stock markets in South-East and East Asia. It finds that stricter interventions – including gathering restrictions, public event cancellations, and mask requirements – helped mitigate the severity of the pandemic significantly in the region. Total border closures had a moderate effect on flattening COVID-19 spread, especially during the onset of the pandemic. Other policies, such as school closures or stay-at-home orders, worked effectively later in the pandemic. The study also shows evidence of herding behaviours in regional stock markets during the pandemic. School closures, gathering restrictions, stay-at-home orders, domestic travelling bans, robust testing policies, and government income support programmes tended to reduce herding behaviour. More stock market integration is found during the onset of the pandemic, compared to the periods before and later in the pandemic, implying the short-term impact of a sudden shock from COVID-19.
Topic:
Governance, Financial Markets, Pandemic, COVID-19, Stock Markets, and Financial Development
Political Geography:
Asia and Southeast Asia

6. Grey Zones in Global Finance: the Distorted Geography of Cross-Border Investments

Author:
Vincent Vicard, Amélie Guillin, and Anne-Laure Delatte
Publication Date:
05-2020
Content Type:
Working Paper
Institution:
Centre d'Etudes Prospectives et d'Informations Internationales (CEPII)
Abstract:
Tax avoidance schemes generate artificially complex cross-border financial structures inflating measured international investment stocks in tax havens. Using a standard gravity framework, we estimate that about 40% of global assets (FDI, portfolio equity and debt) are `abnormal' – unexplained – stocks. Abnormal stocks are increasing over time and concentrated in a limited number of jurisdictions. Six jurisdictions including three European countries are the largest contributors: Cayman, Bermuda, Luxembourg, Hong Kong, Ireland and the Netherlands. Interestingly, the Luxleaks in 2014 do not appear to have diverted cross-border investments away.
Topic:
Economics, International Political Economy, International Trade and Finance, Finance, Borders, Investment, and Stock Markets
Political Geography:
Global Focus

7. How Market Sentiment Drives Forecasts of Stock Returns

Author:
Roman Frydman, Nicholas Mangee, and Josh Stillwagon
Publication Date:
05-2020
Content Type:
Working Paper
Institution:
Institute for New Economic Thinking (INET)
Abstract:
We reveal a novel channel through which market participants’ sentiment influences how they forecast stock returns: their optimism (pessimism) affects the weights they assign to fundamentals. Our analysis yields four main findings. First, if good (bad) “news” about dividends and interest rates coincides with participants’ optimism (pessimism), the news about these fundamentals has a significant effect on participants’ forecasts of future returns and has the expected signs (positive for dividends and negative for interest rates). Second, in models without interactions, or when market sentiment is neutral or conflicts with news about dividends and/or interest rates, this news often does not have a significant effect on ex ante or ex post returns. Third, market sentiment is largely unrelated to the state of economic activity, indicating that it is driven by non-fundamental considerations. Moreover, market sentiment influences stock returns highly irregularly, in terms of both timing and magnitude. This finding supports recent theoretical approaches recognizing that economists and market participants alike face Knightian uncertainty about the correct model driving stock returns.
Topic:
Economics, Markets, and Stock Markets
Political Geography:
United States