Economic growth in a politically fragmented world

I explore the effects of economic and political integration on economic growth in a model of vintage human capital and sequential intergenerational bargains. Adoption of a new technology raises not only the productivity but also the bargaining position of the future generations, creating a bias for the current generations to preserve the current technology. Economic integration (i.e., the sharing of frontier technology among countries) promotes growth if there is a diversity in human capital distribution or a coordination failure across countries. On the other hand, political integration (i.e., the merging of countries into a single bargain) promotes stagnation as it eliminates the diversity and coordination failures.     

Reexamining the Exchange Rate Exposure Puzzle by Classifying Exchange Rate Risks into Two Types

The “exchange rate exposure puzzle” refers to the phenomenon in which the proportion of firms with significant exchange rate exposure tends to be lower than expected figures. Some studies use changes in exchange rate to indicate exchange rate risks relevant to firm value. However, a different measure of exchange rate risks, which is the volatility in exchange rate changes, can also affect the value of firms because exchange rate uncertainty can affect international trade and investments of firms. This study classifies exchange rate risks into two types, namely, changes in exchange rate and the standard deviation of exchange rate changes, and empirically examines exchange rate exposure of firms in 12 countries. The results suggest that the proportion of firms with significant exchange rate exposure increases substantially, and thus, weakens the exchange rate exposure puzzle when we also count the cases in which the standard deviation of exchange rate changes affects stock return significantly.     

A hospital-initiated multisectoral road safety campaign with speed-adapted coconut drop test in Northern Laos

We investigate the efficacy of a multisectoral road safety campaign initiated at Luang Namtha Provincial Hospital (LNPH), North-Laos. Road safety days (RSD) with helmet promotion were organised prior to the Lao and International New Year 2007. Motorbike helmet protectiveness was demonstrated by dropping peeled versus unpeeled coconuts from 6-m high sticks simulating city speed-limit (40?km/h). The primary outcome was the number of road traffic injuries (RTI) needing admission (severe RTI) before and after the first RSD. Secondary outcomes were helmet usage, total RTI, hospital staff's behavioural changes and law enforcement. Neighbouring Bokeo Provincial Hospital (BPH) had no intervention. Severe RTI dropped by 34.7% within 12 months (from 449 to 293, p?≤?0.0001, BPH +123% [from 88 to 196]). Total RTI increased by 10.8% (from 772 to 855, p?=?0.0396, BPH +260.8% [from 186 to 671]). Police started the law enforcement right after the RSD. Helmet use increased from 11.2 to 42.5% (p?相似文献   

Service Quality,Relationship Outcomes,and Membership Types in the Hotel Industry: A Survey in Korea

With the ongoing attention to long-term relationships between service providers and customers, this study delved into such influential factors that include service quality and its relationship outcomes (trust, satisfaction, and continuance commitment), and those relationships among variables along with membership effects in the hotel industry. Survey data from 300 hotel customers in Korea were used to test hypotheses using structural equation modeling. Findings are as follows: interaction and environment service quality had a positive impact on trust, whereas outcome service quality had a positive impact on satisfaction. Additionally, trust was positively associated with satisfaction, and satisfaction was positively associated with continuance commitment. Memberships could strengthen the positive relationships between outcome quality and trust, interaction quality and customer satisfaction, and trust and continuance commitment. From these findings, hotels should improve service quality, generate customers' trust, satisfaction, and continuance commitment, and induce them to the membership programs for long-lasting relationships with them.     

Ownership Structure,Business Group Affiliation,Listing Status,and Earnings Management: Evidence from Korea*

Using a large sample of both publicly traded and privately held firms in South Korea (hereafter “Korea”), we investigate whether, and how, the deviation of controlling shareholders' control from ownership, business group affiliation, and listing status differentially affect the extent of earnings management. Our study yields three major findings. First, we find that as the control‐ownership disparity becomes larger, controlling shareholders tend to engage more in opportunistic earnings management to hide their behavior and avoid adverse consequences such as disciplinary action. The result of our full‐model regression reveals that an increase in the control‐ownership wedge by 1 percent leads to an increase in the magnitude of (unsigned) discretionary accruals by 1.3 percent of lagged total assets, ceteris paribus. Second, we find that for our full‐model regression, the magnitude of (unsigned) discretionary accruals is greater for group‐affiliated firms than for nonaffiliated firms by 0.8 percent of lagged total assets. This result suggests that business group affiliation provides controlling shareholders with more incentives and opportunities for earnings management. Finally, we find that for our full‐model regression, the magnitude of (unsigned) discretionary accruals is greater for publicly traded firms than for privately held firms by 1.2 percent of lagged total assets. This result supports the notion that stock markets create incentives for public firms to manage reported earnings to satisfy the expectations of various market participants that are often expressed in earnings numbers.     

Routing and refueling plans to minimize travel time in alternative-fuel vehicles

A driver who drives an alternative-fuel vehicle (AFV) from an origin point to a destination point needs to consider how to get there (i.e., the routing problem), when to stop, and how and when to refuel (i.e., the refueling plan). In this study, models and algorithms are proposed that optimize a one-way-trip path such that the total travel time from the origin to the destination is minimized. The travel time consists of the setup time, the refueling time and the driving time. The setup time includes waiting for the AFV to be served at a refueling station and the preparation time of charging the machine. We categorized the problems into two types: (1) the refueling plan problem when the routing decision is given and (2) an integrated problem of routing and refueling. Another axis of categorization is when (1) setup time and refueling times are site-independent and (2) parameters are site-dependent. We propose optimal algorithms for site-independent problems and the integrated problem of routing and refueling planning with site-independent parameters. We also conduct experiments and sensitivity analyses for the site-dependent integrated problems of routing and refueling.     

Analyst Forecast Accuracy and Media Independence

Using a large international sample of 47,307 firm‐years from 52 countries, we investigate the impact of media independence on the forecast quality of financial analysts. We find that analyst forecast errors are positively associated with the extent of a country's state media ownership and its lack of freedom of the press. We also find that financial analysts with more inaccurate forecasts disappear from the institutional broker's estimate system more quickly in countries with more independent media.     

The Effect of IPO Risks on Auditors’ Decisions: Auditor Designation Case

This study examines the effect of audit risks in the Korean initial public offering (IPO) market on the designated auditors’ decisions. The Korean External Audit Act requires firms to switch from incumbent to new auditors designated by the Securities and Futures Commission after the firm announces a future IPO. This study shows the effects of audit risks by examining if the quality of reported earnings and audit fees significantly differs between IPO‐eligible and IPO‐ineligible firms. Empirical tests first show that discretionary accruals are significantly lower for IPO‐ineligible firms than for IPO‐eligible firms in both the IPO designation period and the following review period. We interpret this result to mean that designated auditors evaluate the IPO‐ineligible (and eventually failed) firms’ listing possibility as low. Second, audit fees are higher for IPO‐ineligible firms in the auditor designation period. This reflects the fact that designated auditors are exposed to future audit risks associated with firms’ post‐IPO financial market troubles if IPO‐ineligible firms attempt to go public. Our study contributes to IPO‐related research by showing the effects of auditors’ risk evaluation on discretionary accruals and audit fees. This study also contributes to accounting policymaking regarding auditor independence.     

Information‐Processing Costs and Breadth of Ownership

Using the U.S. Securities and Exchange Commission's mandate of eXtensible Business Reporting Language (XBRL) as a natural experiment, this study investigates whether and how the decreased information‐processing costs brought about by XBRL influence firms’ breadth of share ownership. We find that the XBRL mandate is associated with an increase in the total number of a firm's shareholders. This finding is consistent with the notion that XBRL facilitates a more transparent environment and decreases information‐processing costs, thereby attracting more shareholders in general. More interestingly, we find that while XBRL adoption is associated with an increase in share ownership of individual and non‐U.S. foreign institutional investors, it is associated with a decrease in share ownership of U.S. domestic institutional investors. Further evidence shows that this asymmetric shift in share ownership is more pronounced for more complex firms. Our findings, taken together, suggest that the decreased information‐processing costs brought about by XBRL help firms establish a level playing field by reducing the information disadvantages of individual and foreign institutional investors over domestic institutional investors. Our results are robust to potential endogeneity concerns and alternative research designs.     

Intelligent Cyber Logistics Using Reverse Auction in Electronic Commerce

In electronic markets, customers can purchase products online. In addition, the seller or an Internet shopping mall has to deliver the products to the buyers. Transportation agencies can be chosen to deliver the products from an Internet shopping mall. Much research about efficient and automatic delivery scheduling has been carried out on delivery-ordering. By and large, transportation agencies need to maintain not only a cooperative relationship but also a competitive relationship among themselves to meet with customers' preferences for their purchases. This article suggests an intelligent, cyber-logistic framework as a multiagent system and presents designs for an intelligent software-agent structure to maintain this cooperative and competitive relationship. This intelligent cyber-logistic system consists of shopping mall agents, a broker agent, and delivery and scheduling agents. These components, based on the concept of reverse auction, lead to improvement in the overall system efficiency as well as increased profits for each transportation company. Traditionally, in researching vehicle routing problems (VRP), the cooperative and competitive relationships among the transportation companies have not been addressed. However, in this article, we have addressed these issues. We also suggest the reverse method of auction, which solves VRP for their own trucks to provide the transportation of goods for the shopping malls. After finding their own solution, the transportation company can bid with its own cost of delivery. We have used the constraint satisfaction problems solving method to conduct truck scheduling for each transportation agency. To perform the delivery-ordering process between agents, we have defined the logisticsKQML to represent the message protocol of upper level. Finally, we have evaluated the cyber-logistic system using reverse auction by a simulation experiment and have discussed further research and drawn conclusions.