Analysis on the determinants of currency invoicing in Korean trade

We investigate the determinants of currency invoicing in trade using import and export transactions data between Korea and its 30 major trading partners from 2000 to 2013. We find a noticeably different pattern of currency invoicing from advanced countries. For example, a large market share of Korean exporters in partner countries does not guarantee more use of the Korean won in currency invoicing. This might be attributed to a low degree of Korean won's internationalisation and the strong coalescing effect. We also observe that the higher the level of industry product differentiation, the weaker the coalescing motive. In addition, we verify that the share of invoicing in the currency of Korea's trading partner tends to be higher when the partner country has (i) a larger trade volume, (ii) higher level of financial development, (iii) lower inflation and lower price volatility and (iv) its own currency with lower transaction costs.     

The Effect of Diversification on Tail Risk: Evidence from US Equity Mutual Fund Portfolios

This paper examines the effect of diversification on the tail risk of US equity mutual fund portfolios by utilizing classical higher‐moment measures and robust tail weight measures. Empirical results show that market standard portfolios based on the mean‐variance framework are exposed to greater tail risk than benchmark portfolios are and diversification further intensifies this exposure.     

The disappearance of momentum

We investigate the dynamics of the momentum premium in the USA. The momentum premium is significantly positive only during certain periods, notably from the 1940s to the mid-1960s and from the mid-1970s to the late 1990s, and it has disappeared since the late 1990s. Our results further suggest that momentum profits have slowly disappeared since the early 1990s, in a process which was delayed by the occurrence of the high-tech and telecom stock bubble of the late 1990s. In particular, we estimate that the bubble accounted for at least 50% of momentum profits during the period from 1994 to 2000.     

Effect of disclosure regulation on earnings management through related-party transactions: Evidence from Taiwanese firms operating in China

This study examines the effect of disclosure regulation on earnings management using Taiwanese companies conducting transactions with China as the institutional setting. Measuring earnings management by the amount of discretionary accruals (DACCs), the study shows that disclosure regulation mitigates DACCs of Taiwanese firms engaging in related-party transactions with Chinese entities. Following enactment of the disclosure regulation in November 2000, DACCs among Taiwanese enterprises conducting transactions via offshore affiliates dropped. While the disclosure regulation helps to reduce earnings management, this study reports that such effect is asymmetric between high-tech firms and non–high-tech firms. Specifically, the disclosure regulation is effective in reducing earnings management among firms in non–high-tech sectors. However, such effect is not significant among firms in high-tech sectors. This study discusses the implications of empirical findings for corporate management, regulatory agencies, and firm stakeholders.     

The Tariff-Jumping Argument and Location Theory

When examining the tariff-jumping effect, the literature emphasizes the cost-induced effect, which states that a foreign firm has an incentive to jump over the tariff wall in order to locate in a foreign territory, and thereby escape tariffs. The authors set up a location model to show what they refer to as the location-induced effect on tariff-jumping. This location-induced effect, together with the traditional cost-induced effect, makes tariff-jumping more (less) likely to take place when the production function in question exhibits decreasing (increasing) returns to scale.     

Markowitz efficiency and size effect: evidence from the UK stock market

Academics and practitioners have frequently debated the relationship between market capitalization and expected return. We apply the Markowitz efficient frontier approach to develop a portfolio performance measure that compares the return of a portfolio to its optimal return, using data from the UK stock market over the period 1985–2012. Our results show that there is a negative relationship between portfolio size and portfolio return during the period under study. When comparing actual portfolio return with achievable return for the same level of risk, we find that as the portfolio size expands, underperformance of the portfolio increases, i.e. the larger the portfolio size, the greater the underperformance. This indicates that Markowitz efficiency is difficult to achieve, particularly in large portfolios. Changing model parameters leads to alternative efficient frontiers that impact upon the measurement of performance. However, the use of alternative efficient frontiers does not affect our result of the size effect on the relative performance of portfolios. Our study shows that the size effect is present over the full period. Our findings also suggest that the excess returns found in small portfolios are likely to be associated with higher levels of diversifiable risk in comparison with larger portfolios. Furthermore, in contrast to other studies, we find no evidence to support the size reversal effect in the data.     

Spatial Price Discrimination in Input Markets with an Endogenous Market Boundary

This paper examines the welfare effect of third-degree price discrimination in a vertically related market with one upstream monopolist that sells its input to a continuum of downstream markets. Assume that the market boundary of the monopolist is endogenously determined. It is found that social welfare is necessarily lower under discriminatory than uniform pricing, even if the market area of the former is greater than that of the latter. This finding is contrary to that in the extant literature on price discrimination in final goods markets.     

The Optimal Mortgage Loan Portfolio in UK Regional Residential Real Estate

In this study, we propose a method based on large deviation theory (LDT), which minimises credit risk (expected loss). We demonstrate how mortgage loan portfolios can be optimised using geographical differences in the risk characteristics of mortgage loans in the UK. Our empirical results show that credit risk can be reduced by a third when the LDT method is used instead of the benchmark portfolios that we calculate with regional-gross-value-added weights and equal weights. More importantly, the difference in the expected loss between these portfolios increases further during bearish housing markets. To see that such numbers matter, in an extreme scenario, the UK mortgage lenders could lose more than 2% a year as the consequence of mortgage defaults, which is equivalent to an annual loss of approximately 20 billion pounds in the UK. Although this extreme state would not continue for a long time, it nevertheless represents a huge potential loss for mortgage lenders and investors.     

A Study on Designing a Financial Supervisory Institution in Taiwan

This paper investigates world trends in financial supervision, including the separation of treasury and finance and the shift from departmental regulation to functional regulation. Based on the trend toward integration in financial supervision and examination, this paper proposes the adoption of a functional approach to financial supervision and the problems that may occur when we restructure the financial supervisory framework in Taiwan. This paper also discusses various financial supervisory institution models and weighs their advantages and disadvantages. Finally, it advances other issues concerned with the restructuring of the financial supervisory system, including the repositioning of the Central Deposit Insurance Corporation (CDIC), and adjustments in the powers conferred upon the Central Bank to conduct examinations.