Mahidol University International College

About: Mahidol University International College is a based out in . It is known for research contribution in the topics: Tourism & Corporate governance. The organization has 240 authors who have published 485 publications receiving 6095 citations.

Does Board Independence Substitute for External Audit Quality? Evidence from an Exogenous Regulatory Shock

Abstract: Exploiting the passage of the Sarbanes-Oxley Act (SOX) as an exogenous regulatory shock, we investigate whether board independence substitutes for external audit quality. Based on over 14,000 observation across 18 years, our difference-in-difference estimates show that firms forced to raise board independence are far less likely to employ a Big4 auditor. In particular, board independence lowers the propensity to use a Big4 auditor by about 38%. Firms with stronger board independence enjoy more effective governance and therefore do not need as much external audit quality as those with less effective governance do. Based on a natural experiment, our empirical strategy is far less vulnerable to endogeneity and is thus much more likely to show a causal effect, rather than merely an association.

Work‐Efficient Parallel Union‐Find

Abstract: The incremental graph connectivity (IGC) problem is to maintain a data structure that can quickly answer whether two given vertices in a graph are connected, while allowing more edges to be added to the graph. IGC is a fundamental problem and can be solved efficiently in the sequential setting using a solution to the classical union‐find problem. However, sequential solutions are not sufficient to handle modern‐day large, rapidly‐changing graphs where edge updates arrive at a very high rate. We present the first shared‐memory parallel data structure for union‐find (equivalently, IGC) that is both provably work‐efficient (ie, performs no more work than the best sequential counterpart) and has polylogarithmic parallel depth. We also present a simpler algorithm with slightly worse theoretical properties, but which is easier to implement and has good practical performance. Our experiments on large graph streams with various degree distributions show that it has good practical performance, capable of processing hundreds of millions of edges per second using a 20‐core machine.

Perceptions of service quality at football stadiums: influence on fans’ intention to attend future games

Abstract: This study enhances the understanding of service quality at major spectator sports events in Thailand by examining the relationship between spectators’ perception of event quality and their behavio...