Shrinkage estimation of the exponentiated Weibull regression model for time-to-event data

The exponentiated Weibull distribution is a convenient alternative to the generalized gamma distribution to model time-to-event data. It accommodates both monotone and nonmonotone hazard shapes, and flexible enough to describe data with wide ranging characteristics. It can also be used for regression analysis of time-to-event data. The maximum likelihood method is thus far the most widely used technique for inference, though there is a considerable body of research of improving the maximum likelihood estimators in terms of asymptotic efficiency. For example, there has recently been considerable attention on applying James–Stein shrinkage ideas to parameter estimation in regression models. We propose nonpenalty shrinkage estimation for the exponentiated Weibull regression model for time-to-event data. Comparative studies suggest that the shrinkage estimators outperform the maximum likelihood estimators in terms of statistical efficiency. Overall, the shrinkage method leads to more accurate statistical inference, a fundamental and desirable component of statistical theory.     

Socioeconomic Changes and the Decline in Poverty: A View from Three Villages in the Philippines, 1985–1997*

The present paper examines socioeconomic changes and decline in rural poverty using a panel dataset collected in the Philippine villages in 1985, 1993 and 1997. The most important finding is the transition of the rural economy away from a regime of low nonfarm income to a regime of high nonfarm income accompanied by a marked decline in poverty. The relative contribution of access to land on rural poverty reduction declined, whereas the relative contribution of human capital, more importantly represented by college schooling, increased over time.     

Dividend policies across multinational and domestic corporations – an international study

This study examines whether the determinants of dividend payout ratios between Multinational (MCs) and Domestic corporations (DCs) vary across Australia, U.S., Japan, U.K. and Malaysia. Results show: (i) Australian, UK and Malaysian MCs pay significantly less dividends than their Domestic counterparts; however, the opposite holds for the U.S. firms; (ii) the factors that significantly explain the difference between DCs’ and MCs’ payout ratios vary across countries; (iii) firms operating in an imputation tax system and in a common law environment pay comparatively higher dividends relative to firms operating in a classical tax system and civil law regime.     

Components of CEO Remuneration and Non‐GAAP Disclosure

This paper provides evidence of the effect of chief executive officer (CEO) remuneration on decisions to disclose voluntary non‐generally accepted accounting principles (non‐GAAP) financial measures. We investigate profit announcements that focus on the most emphasised part, which includes mandatorily identified information (results for the announcement to the market) and the least emphasised part, which incorporates other sections. By reading the profit announcements and manually collecting non‐GAAP financial measures (NGFM) data, there is no reliance on keyword search strings and as such we uncover the pervasiveness of the use of NGFM. Results show that the base component of CEOs’ remuneration plays a significant role in reporting NGFM in the most emphasised part of the profit announcement. Conversely, all three (base, short‐term and long‐term incentives) components of the remuneration package have a significant relationship with the reporting decisions in the least emphasised part of the statement. We find that, depending on the regulatory imposition and the emphasis assigned to the section of the profit announcement, the motive for voluntary disclosure of NGFM can be explained as altruistic (informative) or opportunistic (misleading). We contribute evidence on ‘pay–action’ rather than ‘pay–performance’ by incorporating all three components simultaneously into the framework to maintain the assumption of correspondence and internal consistency among those components.     

Sustainability Risk Disclosure Practices of Listed Companies in Australia

This paper investigates the extent to which the top 100 ASX listed companies disclosed economic, environmental and social sustainability risk factors during the 2014/15 financial year in light of the changes introducing Recommendation 7.4 to the third edition of the Corporate Governance Principles and Recommendations in 2014. While all companies complied with the Recommendation, questions of substance over form were raised because some companies had risks that were not disclosed according to Recommendation 7.4. Our conclusion outlines how this research contributes to the growing literature on sustainability and corporate governance. We add to the continuing debate on mandatory versus voluntary disclosures, advocating that Australia may need to introduce mandatory guidelines, beyond the ASX, to regulate the disclosure of material economic, environmental and social risks. Additionally, we conclude that Recommendation 7.4 is unlikely to substantially change Australian corporate reporting and disclosure practices – that, for most companies, it is ‘business as usual’. However, under business as usual, we can naturally expect to see further increases in sustainability and alternative reporting frameworks, such as integrated reporting, as well as increasing use of the Internet to report and disclose sustainability risks.     

Inflation and inflation volatility in Thailand

Quarterly data for Thailand are used in this article for the period 1965q3–2013q4 to investigate both the relationship between inflation and inflation volatility, and the impact of inflation volatility on economic growth. Inflation volatility is estimated by deploying the generalized autoregressive conditional heteroscedastic (GARCH) technique. A Granger causality test is then conducted to examine the causality between inflation and inflation volatility. The empirical results obtained are consistent with a number of theoretical propositions. First, the results are consistent with the Friedman–Ball proposition, which states that a rise in inflation raises inflation volatility. Second, there is evidence supporting the Holland proposition that inflation volatility lowers the rate of inflation. This is consistent with the view that central banks attempt to stabilize inflation with the rise in inflation volatility. Third, empirical results obtained by asymmetric GARCH models suggest that inflation shocks have an asymmetric impact on inflation volatility (i.e. a positive inflation shock has a larger impact on inflation volatility – as measured by the logarithm of the conditional variance of inflation – than a negative inflation shock). Fourth, inflation volatility has an adverse impact on economic growth. Finally, given the fixed/pegged or managed float exchange rate system, US inflation has been found to have a positive impact on inflation and its volatility in Thailand. This article discusses the implications of empirical findings on the design and enactment of monetary policy for price stability in Thailand.     

Organizational context and human resource management strategy: a structural equation analysis of Hong Kong firms

Previous studies to explain why companies utilize particular human resource management (HRM) strategies have not adequately addressed the influence of contextual variables such as size, location, ownership, competitive pressure, technological change, age and growth. In this study, we investigate the extent to which these contextual variables are related to HRM strategy in seventy-six private-sector firms located in Hong Kong. Our analysis uses structural equations to examine the relationships among contextual variables and HRM strategy to develop and retain managers. The results show that contextual variables have both direct and indirect effects on an organization's HRM strategy. The indirect effects occur through the top management involvement of the HR function within an organization. Use of a human capital development HRM strategy reduces organizational uncertainty about having an adequate supply of managers to meet firm objectives. Contrary to our expectation, in Hong Kong firms, greater reliance on internal development and promotion tends to increase uncertainty and greater competition tends to reduce training investment. Both of these unanticipated relationships may reflect the high mobility of managers peculiar to the Hong Kong labour market.     

Auditing regulations and bank shareholders’ wealth: An international analysis

This paper examines the ability of auditing regulation to protect bank shareholders’ wealth during the time of normal growth and during the 2007–2009 global financial crises. The study uses the bank regulation database available at the World Bank website. We select a sample of 2467 banks from 107 countries for the years 1999–2009. We perform multivariate regression analyses and find that while auditing regulations enhance bank equity prices in normal growth periods, there is no evidence that auditing regulations are associated with bank share prices during the period of financial crisis. We observe similar results for both developed and emerging countries and for the common and code law countries. Our results suggest an immediate need to strengthen audit regulations so that investor confidence is more likely to persist during periods of financial downturn.     

Monetary targeting for price stability in Bangladesh: How stable is its money demand function and the linkage between money supply growth and inflation?

Since the mid-1980s Bangladesh has implemented a loose form of monetary targeting under two exchange-rate régimes: a pegged system until May 2003 and a ‘managed floating’ exchange-rate system. Under both régimes, broad money has been used as an intermediate target to maintain price stability, which implies as the ultimate goal a relatively low and stable rate of inflation. Inflation in this country has, however, remained moderately high and volatile, especially during the 1970s under the pegged exchange-rate system. With the apparent ineffectiveness of the monetary-targeting system in achieving price stability, even following the 2003 ‘managed float’ of the currency, there has been some suggestion that it should be replaced by, say, inflation targeting. This paper forms an element of a fuller study of the issue. It investigates the behaviour of broad money demand in Bangladesh using annual data over the period 1973–2008. Empirical results suggest that an open-economy broad money demand function has remained stable in Bangladesh since the early 2000s. Empirical results also suggest the existence of a causal relationship between money supply growth and inflation. The paper concludes that, although monetary targeting remains appropriate for Bangladesh, its implementation can be made more effective in stabilising the price level if the Bangladesh Bank enhances its control over the money supply by eschewing nominal exchange-rate stabilisation through foreign exchange market interventions.