A statistical physics model for the time evolutions of stock portfolios is proposed. In this model the time series of price changes are coded into the sequences of up and down spins. The Hamiltonian of the system is introduced and is expressed by spin-spin interactions as in spin glass models of disordered magnetic systems. The interaction coefficients between two stocks are determined by empir...

2 Abstract Recent research on financial market development has focused on the nature of the legal system. The law and finance literature, however, exclusively focuses on the abuse of management power as a major cause of shareholder expropriation. We examine the role of the administrative capability of the state in providing and guaranteeing the institutional foundations for securities developme...

volume indicates. Index options give market participants the ability to participate in anticipated market movements without having to buy or sell a large number of securities, and they permit portfolio managers to limit downside risk. Given their prominence and functions, the pricing efficiency of these markets is of great importance to academics, practitioners , and regulators. Well-functionin...

the process of economic globalization and integration has had a tremendous growth in recent years and the convergence of various economic sectors, including the financial markets is increasingly in the spotlight. this increasing trend has strengthened investors' interests in the subject of convergence among the world's stock markets and investors experimentally show a passion for unde...

This paper investigates the issue of co-movement and interaction among the monetary, foreign exchange and stock markets by employing the data from China’s financial markets. Based on the ICA-EGARCH-M model, we explore the volatility spillover effects so as to illustrate the overall co-movements across financial markets. Furthermore, in order to observe the multi-market dynamic relationship vari...

purpose: this paper addresses whether and how the sarbanes-oxley act of 2002(sox) affects shareholder wealth (firm value) by focusing on the trade-off between improved corporate governance leading to a lower cost of capital and increased managerial compliance costs of regulations. design/methodology: we use an analytical model of solving the management utility maximization function and the chan...

The recent economic crisis highlights the role of financial markets in allowing economic agents, including prominent banks, to speculate on the future returns of different financial assets, such as mortgage-backed securities. This paper introduces a dynamic general equilibriummodel with aggregate shocks, endogeneously incomplete markets and heterogeneous agents to investigate this role of finan...

We provide a comprehensive review of firms’ financing channels (internal and external, domestic and international) around the globe, with the focus on alternative finance—financing from all the nonmarket, non-bank external sources. We argue that while traditional financing channels, including financial markets and banks, provide significant sources of funds for firms in developed countries, alt...