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Systemic risk from investment similarities
Network theory proved recently to be useful in the quantification of many properties of financial systems. The analysis of the structure of investment portfolios is a major application since their eventual correlation and overlap impact the actual risk by individual investors. We investigate the bipartite network of US mutual fund portfolios and their assets. We follow its evolution during the Global Financial Crisis and study the diversification, as understood in modern portfolio theory, and the similarity of the investments of different funds. We show that, on average, portfolios have become more diversified and less similar during the crisis. However, we also find that large overlap is far more likely than expected from benchmark models of random allocation of investments. This indicates the existence of strong correlations between fund investment strategies. We exploit a deliberately simplified model of shock propagation to identify a systemic risk component stemming from the similarity of portfolios. The network is still partially vulnerable after the crisis because of this effect, despite the increase in the diversification of multi asset portfolios. Diversification and similarity should be taken into account jointly to properly assess systemic risk.
Journal Article
Antecedents and consequences of Personal Financial Management Behavior: a systematic literature review and future research agenda
PurposeThe purpose of this paper is to investigate the current state of research on Personal Financial Management Behavior (PFMB), with a prime focus on its antecedents and the consequences. By analyzing the research trends, methods, determinants and outcomes, the PFMB literature is synthesized, and agenda for future research is suggested. A framework is presented that portrays PFMB's antecedents and consequences and further specification of the mediation and moderation linkages.Design/methodology/approachThe review is based on 160 articles published during 1970–2020. It follows a systematic approach and presents the definitions and theories of PFMB, publication trends based on time, region, sample population, research designs, data collection and analysis techniques, along with antecedents and outcomes through content analysis.FindingsThe synthesis draws upon various factors affecting PFMB, such as demographics, socio-economic, psychological, social, cultural, financial experience, financial literacy (FL) and technological factors. The prominent outcomes of PFMB include financial satisfaction, relationship satisfaction, quality of life, financial success, happiness, financial vulnerability/resilience and financial well-being. The future research agenda sums up the recommendations in the form of research questions on variables and their linkages, followed by methodological advancements.Originality/valueThis paper covers the scholarly work done in this area in the past 51 years. To the best of authors' knowledge, this is the first attempt to offer a most comprehensive and collective scholarship of this subject. It further gives an extensive future research agenda.
Journal Article
Systemic risk in banking ecosystems
Crash test: can ecological theory save the markets?
In a Perspective review, Andrew Haldane, executive director for financial stability at the Bank of England, and ecologist Robert May look at the nature of risk that led to the recent global crisis in the international banking system. Utilizing tools more often used to analyse ecological food webs and the spread of infectious diseases, they conclude that there are lessons to be learned from the exercise that could inform future public policy decisions.
In the run-up to the recent financial crisis, an increasingly elaborate set of financial instruments emerged, intended to optimize returns to individual institutions with seemingly minimal risk. Essentially no attention was given to their possible effects on the stability of the system as a whole. Drawing analogies with the dynamics of ecological food webs and with networks within which infectious diseases spread, we explore the interplay between complexity and stability in deliberately simplified models of financial networks. We suggest some policy lessons that can be drawn from such models, with the explicit aim of minimizing systemic risk.
Journal Article
Zero lower bound term structure modeling : a practitioner's guide
Nominal yields on government debt in several countries have fallen very near their zero lower bound (ZLB), causing a liquidity trap and limiting the capacity to stimulate economic growth. This book provides a comprehensive reference to ZLB structure modeling in an applied setting.
eBook
Corporate Finance in Asia and the COVID-19 Crisis
Asian corporations and their ability to access financing deserve special attention due to their importance in global markets, their integration into regional and global supply chains, and their ownership structures. This report covers some of the long-term trends observed in the listed corporate sector and capital markets in Asia. It also looks at how Asian companies used market-based financing during the COVID-19 pandemic, and the main fiscal and regulatory measures Asian authorities took to support the corporate sector’s access to finance during this period.
eBook