This paper proposes M-channel oversampled filter banks for graph signals. The filter set satisfies the perfect reconstruction condition. A method of designing oversampled graph filter banks is ...presented that allows us to design filters with arbitrary parameters, unlike the conventional critically sampled graph filter banks. The oversampled graph Laplacian matrix is also introduced with a discussion of the entire redundancy of the oversampled graph signal processing system. The practical performance of the proposed filter banks is validated through graph signal denoising experiments.
This paper identifies geographic linkages as novel linkages that can transmit negative shocks from one bank to another. I consider linkages between banks that engage in home lending in the same ...geographic area. Exploiting home price changes initiated by the Great Recession and heterogeneity in such changes across geographic areas to capture variations in a bank's exposure to negative shocks, I show that a bank contracts lending more if its linkages are more shocked. Results suggest investor-runs as the underlying mechanisms of spillovers: Because similar banks lend in similar markets, investors lose confidence on the quality of banks that are geographically linked with shocked banks and run on them, thus resulting in banks reducing lending.
This letter announces that PDBx/mmCIF format files will become mandatory for crystallographic depositions to the Protein Data Bank (PDB).
This letter announces that PDBx/mmCIF format files will ...become mandatory for crystallographic depositions to the Protein Data Bank (PDB).
Does globalization erode the nation state's capacity to act? Are nation states forced to change their policies even if this goes against the democratic will of their electorates? How does government ...action change under conditions of globalization? Questions like these have not only featured highly in political debates in recent years, but also in academic discourse. This book seeks to contribute to that debate. The general question it addresses is whether globalization leads to policy convergence a central, but contested topic in the debate, as theoretical arguments can be advanced both in favour of and against the likelihood of such a development. More specifically, the book contains detailed empirical case studies of four countries (the United States, the United Kingdom, Germany, and Switzerland) in a policy area where state action has been particularly challenged by the emergence of world-wide, around-the-clock financial markets in the last few decades, namely that of the regulation and supervision of the banking industry. Based on careful analysis of historical developments, specific challenges, the character of policy networks and institutions, and their interaction in the political process, this book argues that nation states still possess considerable room for manouevre in pursuing their policies. Even if they choose supranational coordination and cooperation, their national institutional configurations still function as filters in the globalization process. This book is of particular value to readers interested in the politics and policies of globalization, the interaction of business communities and the political system in different countries, and students of comparative politics interested in detailed case studies of policy-making. Available in OSO:
To maintain financial stability, banks need to recognize, assess, and mitigate potential losses, thus making risk control critical for long-term profitability as well as avoiding unexpected losses. ...This research examines the risk mitigating factors and performance of Ghanaian domestic banks in terms of capital adequacy, bank size, bank efficiency, and profitability, along with their association with systemic risk in the bank sector, as measured by the Z-score: Insolvency Risk - (µROA) plus capital asset ratio (equity capital divided by sum of all assets further divided by the standard deviation-(ƠROA) with a higher score for banks as a measure of bank stability. The study further explores the relationship between this ratio and the explanatory variables for a sample of 11 banks operating in Ghana between 2010 and 2021. Analysis of the data using the fixed effects model shows that profitability and bank efficiency are significant and affect the stability of banks positively. Bank size, on the other hand, is significant but negatively affects the stability of banks. Bank profitability is critical to stabilizing and protecting the banking sector from external shocks; as a result, this study suggests that bank management apply prudent practices to profitability-driven indicators and that the banking sector regulations be congruent with macro-prudential policies.
A successful fiscal discipline applied with central banks' price stability target or inflation targeting strategy contributes to the improvement of the coordination between monetary and fiscal ...policy. On the other hand, the emergence of financial dominance and weakening the independence of the central banks brings with it many problems. In this regard, the aim of the study is to investigate the nexus between fiscal dominance and central bank independence empirically. Unlike other studies, in this study Non-Eurozone EU countries (Bulgaria, Czech Republic, Croatia, Denmark, Hungary, Latvia, Lithuania, Poland, Romania, Sweden, and UK) and Turkey, which is in candidate status to European Union, were taken as a sample. The results of panel cointegration and causality tests conducted with the 2000-2016 period data show that there is a cointegration relationship and bi-directional causality between fiscal dominance and central bank independence. Besides that dynamic ordinary least squares (DOLS) cointegration estimator results express that when fiscal dominance increases 1%, central bank independence decreases 0.22% and specific results of countries differ by countries.
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