A note on the behaviour of the “tail” of the mixture-poisson distribution

Abstract

A mixture-Poisson distribution is defined by where U(x) is a distribution function concentrated on (0, ∞). This distribution has been applied as a model of the number of claims occurring in an insurance business during a certain period of time.     

A note on Mossin’s theorem for deductible insurance given random initial wealth

Mossin’s theorem for deductible insurance given random initial wealth is re-examined. For a fair premium, it is shown that a necessary and sufficient condition, in the spirit of the Generalized Mossin Theorem for coinsurance, is impossible using the notion of expectation dependence. Next, it is established that for a fair premium, full insurance will be optimal for a risk-averse individual if the random loss and the random initial wealth are negative quadrant dependent, improving upon an extant result in the literature. In view of a set of examples given in this paper, such a sufficient condition cannot be obtained using the notion of expectation dependence. Finally, for an unfair premium, it is shown that partial insurance will always be optimal, irrespective of the risk preference of the individual as well as the dependence structure between the random loss and the random initial wealth.     

A practitioner’s view of the future of futures studies

This article looks at the future of futures studies (FS) over the next 20 years from a practitioner’s viewpoint. It begins with favorable developments for FS in the organizational context. The main body covers how FS can take advantage of these more favorable developments. It then anticipates some key methodological and professional challenges and how FS might meet them. It concludes with a few comments about the prospects for a self-actualized FS.The single biggest challenge for FS over the next generation from my practitioner’s point-of-view is to get beyond the cyclicality of interest in the future and get FS firmly integrated into the organizational context. Our experience to date convinces me that we have earned “the right to practice,” and we must now focus the next few decades on sinking roots “inside”. The good news is that there are several developments suggesting that this is not just a preferable but also a probable future.     

Effect of Internationalization on the Cost Efficiency of Taiwan’s Banks

Abstract:

We focus on the effect of internationalization on the cost efficiency of banks by studying Taiwan as a sample for developing countries. We find that (1) increasing overseas businesses and foreign exchange deposits increases cost efficiency; (2) expanding offshore banking units increases bank efficiency; and (3) the profitability of a bank’s overseas branch is not a critical factor behind the differences in cost efficiency across both financial holding company (FHC) banks and non-financial holding company (non-FHC) banks. Finally, our metafrontier empirical results illustrate that FHC banks in Taiwan show better technical performance in cost control than non-FHC banks.     

Research on the Transmission of the Influence of the Quantitative Easing Policy on China’s Housing Price Bubble

The Federal Reserve has implemented the second round of quantitative easing monetary policy (QE2) in November 4th 2010, which has dealt a heavy blow upon the liquidity of China.The sudden dollar overhang causes great pressure of RMB appreciation. Based on the analysis of the following chain-reactions, this paper discovers and concludes the potential transmission mechanism of how QE2 influence China’s housing price bubble. At last, related policy recommendations are proposed.     

Does investor protection regime affect the effectiveness of outside directorship on the board?

Since the Sarbanes-Oxley Act was enacted in U.S., there has been a general tendency to globally harmonize regulations and practices of board governance. The purpose of this study is to compare among countries how well the board of directors constrains earnings management. Using a sample of firms from 23 countries, we document some evidence that higher outside directorship on the board is associated with lower earnings management in the international context. We also find that there is no significant difference in the effectiveness of board outside directorship in constraining earnings management between high and low investor protection countries. Our findings mitigate a concern that harmonized corporate governance in low investor protection countries may not work.     

A note on foreigners’ trading and price effects across firms

We study the investment behavior of foreign investors in association with an equity market liberalization, and find a strong link between foreigners’ trading and local market returns. In the period following the liberalization, net purchases by foreign investors induced a permanent increase in stock prices, suggesting that local firms reduced their cost of equity capital. We also find a strong link between a firm’s fraction of foreign ownership and the magnitude of the cost reduction. Foreign investors seem to prefer large and well-known firms, and these firms realize the largest reduction in capital cost. Furthermore, our analysis suggests that foreigners increase their net holding in firms that have recently performed well. Analyzing foreigners’ performance, we find very little evidence of informed trading, suggesting that risk sharing is the most plausible explanation for the reduction of the cost of equity capital.     

On the Effect of Bank of Japan’s Outright Purchase on the JGB Yield Curve

This paper examines an impact of Bank of Japan (BOJ)’s outright purchase on the Japanese government bond (JGB) yield curve. Particularly, we develop a simple state space model, which incorporates new factors regarding the BOJ’s announcement for its outright purchase and the current market outstanding with standard level and spread factors. Based on the model with a filtering method, we also implement an empirical analysis with time series of the BOJ’s announcement records during 2014/10/22–2017/8/3 in the quantitative–qualitative easing period to estimate the sensitivities of interest rates against the changes in the market expectation for the net supply with each sector of JGB. We expect the current work provides a basis for considering quantitative effects on the term structure by BOJ’s policy changes such as termination or significant reduction of the BOJ’s outright purchase. For instance, our scenario analysis shows substantial increase in the 30 year yield with widening of 20–30 year spread.     

A Theory on REIT’s Advisor Choice and the Optimal Compensation Mechanism

This paper proposes a model which examines the power of monitoring and forcing contract on improving managerial efficiency. We put particular focus on its implication regarding the choice of advisor type used by REITs. This question has long been a puzzling one in real estate literature. Our model provides a theoretical justification regarding the potential appeal of external managerial structure, which is usually regarded as being inferior to internal managerial structure. A crucial driving force regarding advisor choice is the heterogeneity on monitoring power between internal and external advisors and across REIT firms. Provided that the gap of monitoring power is large enough between internal and external advisors, shareholders could make use of the heterogeneity, and induce higher effort levels from external advisors. We motivate the rationale for expecting a “monitoring advantage” over external management from two aspects: the dual-role of external advisory firm and a bigger reputational cost associated with external advisor. Furthermore, we are able to specify the range within which an improved monitoring power is Pareto-optimal for both REIT shareholders and advisors. One implication is that, as agents, it may also be to the benefit of advisors to be better monitored. Finally, we compare the difference between fixed and stochastic forcing contracts. Our findings show that with their imperfect performance measures, the stochastic forcing contracts always dominate the fixed one.     

A multivariate analysis of the determinants of Moody’s bank financial strength ratings

In 1995 Moody’s Investors Services inaugurated a new rating service, bank financial strength ratings (BFSRs), that assesses the safety and soundness of banks in over 50 countries. Our study sets out to do some preliminary investigations of this new type of credit rating. We develop logistic regression models to help explain or predict BFSRs. Using bank-specific accounting and financial data we are able to correctly classify or predict BFSRs. These fundamental variables cover the dimensions of risk, loan provision ratios, and profitability. Of the three, loan provisions is the most important factor, followed by risk, and then profitability. Country risk ratings do not appear to be significant explanators of BFSRs. We also find that traditional debt ratings accurately classify BFSRs and this raises the question of whether BFSRs add incremental information. The paper also highlights future directions for our research. One such area is to examine how well BFSRs predict banking crises such as the credit problems currently affecting Asia and Latin America.     

A note on trading mechanism and securities’ value: The analysis of rejects from continuous trade

We examine 97 stocks that moved from continuous trade back to single daily auctions. The response to exit from continuous trade is almost a mirror image of the entry response documented in Amihud et al., 1997 (Amihud, Y., Mendelson, H., Lauterbach, B., 1997. Journal of Financial Economics 45, 365–390). Upon exiting continuous trade, stock liquidity, price accuracy, and value drop. An exception is, however, identified. Ten stocks that were omitted from continuous trade within three months of their addition have negative excess returns upon entry into continuous trade and positive excess returns upon exit. These immediate rejects had relatively low volumes before entering continuous trade, which suggests that for thinly traded stocks simple unassisted continuous trade may not be optimal.     

Remarks on “A note on compound generalized distributions”

Abstract

1. INTRODUCTION

In [1] the authors derive recursion formulae for computing total claim probabilities for a general class of modified power series distributions. Such formulae provide an important tool for computing total claim size probabilities in risk-theory. As it turns out, two of their recursions (Theorem 3.2 and Theorem 3.4) need modifications. Unfortunately, these modifications have the effect that the recursions break down. In the following, we will state the modified theorems and show how these obstacles can be overcome.     

Do investors hold that they know? Impact of familiarity bias on investor’s reluctance to realize losses: Experimental approach

In this article we investigate the impact of familiarity bias on the individual investor’s reluctance to realize losses. Our experimental approach reveals a strong correlation between familiarity and disposition effect. We conducted 714 tests in which different respondents could sell stocks of two types – winners and losers. One group of respondents “owned” familiar assets and another group operated anonymous portfolios. The results of the experiment show that an individual investor’s tendency to ride losers too long is more than twice as high in the case of unfamiliar stocks as it is when assets are familiar to the holder.     

A remark on ‘A class of approximations of ruin probabilities’

Abstract

In this short note we shall show that a certain ‘tail’-condition used by Grandell (1977, p. 42) is unnecessary. We shall freely use notions and notations from our previous paper. We shall only consider the Poisson case.     

Experiencing risk: the effect of the experiential life-skills centre ‘Warning Zone’ on children’s risk perception

This study examined the psychological effects of the Warning Zone experiential life-skills centre on risk perception. The aim of Warning Zone is to educate children about dangers and risks they may encounter in everyday life, with a view to preventing injury. To evaluate changes in risk perception, a quasi-experimental study was undertaken in which children’s risk perception was measured before, after, and one month after the Warning Zone experience. This research also examined children from different types of schools, in order to assess socio-economic factors. Children’s risk perception increased significantly after Warning Zone, and this significant increase was retained one month later. Differential effects of Warning Zone were found between children from different school types, as were pre-existing differences in risk perception between these groups. Children from more deprived backgrounds had better understanding of risks prior to their visit to Warning Zone and a month later had better retained the message of Warning Zone about risks. We conclude that Warning Zone is effective at raising children’s perceptions of risk.     

A nonparametric approach to measuring the sensitivity of an asset’s return to the market

In the market model the return on an asset is modeled as a linear function of the return on a market index with slope parameter beta. The coefficient beta is often used as a measure of the sensitivity of the asset’s return to the market and to measure the component of the variance of the return that is explained by the market. However, both of these interpretations require the additional assumption that the error term in the market model has mean 0 conditional on the return on the market index, an assumption that is often difficult to verify in practice. In this paper, a nonparametric version of the market model is proposed that does not require such an assumption. This nonparametric model replaces the beta coefficient of the market model with a “beta curve” describing the relationship between the asset’s return and that of the market locally near a given value of the market return. The proposed model is applied to stock returns, as well as to returns on mutual funds. Corresponding tests of the market model are given and it is shown that the nonparametric model often provides an improvement over the standard parametric market model.     

Empirical evidence of the existence of speculative bubbles in the prices of stocks traded on the São Paulo Stock Exchange

Speculative price bubbles are defined as a significant deviation between an asset's intrinsic value and its market value and in this paper it refers to stock values. Literature about the theme has noted the existence of bubbles in various types of markets and their respective assets. A great deal of effort has been directed toward identifying bubbles in stock price indices. However, few research endeavors focus on assets as the unit of analysis. Studies about stocks in Brazil have identified the presence of bubbles in IBOVESPA (São Paulo Stock Exchange Index). Given this context and assuming that the speculative bubbles are present in the Brazilian stock market, this research is focused on the following question: Is there evidence of the existence of speculative bubbles in stock prices traded on the São Paulo Stock Exchange? Econometric tests were performed on twenty-seven stocks, based upon their positions each semester, for the period between the first semesters of 1990 until the first semester of 2010. The nominal values of the selected stocks were adjusted for inflation by the IPCA (Brazilian Consumer Price Index). In order to identify the presence of bubbles, we applied the Johansen non-cointegration test and/or the Granger non-causality test between the intrinsic value, dividends and interest on equity capital, and the market value (semester closing price) of the stocks. The primary findings reveal a presence of bubbles in twenty of the twenty-seven stocks, at a 5% significance level. Of the seven stocks not showing evidence of bubbles, six are financial institutions. In five stocks the tests reveal Granger causality stemming from the market value toward the intrinsic value. The study findings are consistent and contribute with previous research in the literature and, are useful for investors, financial institutions, academics, government agents, and traders.