Introduction to Special Issue: Restoring the Florida Everglades—Balancing Population and the Environment

Population and Environment -     

Thailand’s urban population reconsidered

In lieu of any official definition of “urban population” in Thailand, researchers and policy makers have generally used a simple urban-rural dichotomy, relying upon the administratively designated municipal areas as urban and the remainder of the kingdom as rural. For administrative purposes, however, a more refined set of residence categories is available: the “urban” segment is subdivided into three categories of municipal areas; within the “rural” group, units of population concentration classified as sanitary districts are distinguished from the remainder of the rural population. Data from a 1970 census sample tape have been used to analyze a number of socioeconomic characteristics, as well as migration and fertility, for each of these five residence categories separately in an attempt to determine if the formerly used rural-urban dichotomy is valid. For each of the characteristics and for migration and fertility, a clear urban-rural continuum emerges, with the sanitary districts generally resembling the smaller urban places more than they do the rural areas under which they are usually subsumed. The evaluation thus suggests the importance to research and policy either of using an urban-rural continuum or of grouping sanitary districts with municipal areas when a dichotomy must be used. Doing so should facilitate evaluation of the interrelations between urbanization and demographic and development factors.     

Adapting the Own Children Method to allow comparison of fertility between populations with different marriage regimes

The Own Children Method (OCM) is an indirect procedure for deriving age-specific fertility rates and total fertility from children living with their mothers at a census or survey. The method was designed primarily for the calculation of overall fertility, although there are variants that allow the calculation of marital fertility. In this paper we argue that the standard variants for calculating marital fertility can produce misleading results and require strong assumptions, particularly when applied to social or spatial subgroups. We present two new variants of the method for calculating marital fertility: the first of these allows for the presence of non-marital fertility and the second also permits the more robust calculation of rates for social subgroups of the population. We illustrate and test these using full-count census data for England and Wales in 1911.     

Interpersonal Perspectives on Black–White Health Disparities: Social Policy Implications

There are large and persistent disparities between the health status of Blacks and Whites in the United States. On average, the mental and physical health of Blacks is much poorer than Whites. In this article, we discuss several potential direct causes of Black–White disparities in health status, which include biological or genetic factors, prejudice and related processes, and socioeconomic factors. We also consider how the system-level, patient-level, and provider-level components of healthcare contribute to disparities in health status. We examine in detail the psychological processes associated with patient- and provider-level factors that may produce healthcare disparities. Of particular interest is the potential impact of racial attitudes and stereotypes on provider–patient interactions. Finally, we propose possible directions for future research on health disparities and discuss policy changes that might reduce disparities in health status and healthcare between social groups.     

Emigration from Zimbabwe: Migrant Perspectives

This article explores migration from Zimbabwe to the UK and South Africa and the experiences of the receiving countries from the perspective of the migrants. It provides a critical examination of the impact of structural barriers in both the UK and South Africa on the economic experiences of migrants. The effects of immigration status, due to the exclusion of asylum‐seekers in the UK and the presence of undocumented migrants in the UK and South Africa, is explored in relation to employment and remittance activities. The clear evidence of the deskilling taking place among the majority of Zimbabwean migrants – and its impact on remittances and other forms of transnational support – is also examined. The article concludes that any real commitment to alleviating global poverty on the part of the world's migrant receiving countries must include a re‐examination of barriers to employment, education and the use of skills, since these barriers not only have a short‐term impact on remittances to the sending country and fiscal capacity to contribute in the receiving country, but will also impact on longer‐term development should the migrants return to their country of origin.     

The Marshall-Olkin Fréchet Distribution

We introduce a new distribution, namely Marshall–Olkin Fréchet distribution. The probability density and hazard rate functions are derived and their shape properties are considered. Expressions for the nth moments are given. Various results with respect to quantiles, Rényi entropy and order statistics are obtained. The unknown parameters of the new distribution are estimated using the maximum likelihood estimation method adopting three different iterative procedures. The model is applied on a real data set on survival times.

[Supplementary materials are available for this article. Go to the publisher's online edition of Communications in Statistics—Theory and Methods for the following free supplemental resource: A file that will allow the random variables from MOF distribution to be generated.]     

The impact of related party transactions on earnings management: some insights from the Italian context

Related party transactions have become a key issue as a result of recent financial scandals. This study examines whether firms use related party transactions for earnings management, and then, whether they try to minimize detection through the format of related party transactions disclosure. Firstly, we analyze the association between related party transactions structure (types and parties involved) and the probability of reporting small earnings increase. Related party transactions may have significant impact on, and implications for, earnings management. According to the agency theory, related party transactions are used opportunistically, while the efficient transaction hypothesis argues that related party transactions meet the economic needs of the business. We next investigate the association between the probability of reporting small earnings increases through related party transactions and disclosure quality. Disclosure quality should be studied in relation to impression management and investor attention; this approach takes account of the idea that earnings management behavior may influence the quality of disclosure as a possible way of lowering conflict of interest. In line with the agency theory, our findings show that revenue related party transactions are more likely to be used to manage earnings than other types of transaction; related party transactions with ultimate parents are associated with lower probability of reporting small earnings increases compared to operations with other related parties. Lastly, our results confirm that the decision to engage in earnings management is related to lower disclosure quality.     

Relations between youths' community violence exposure and their physical aggression: The protective role of adults

The purpose of this study was to examine whether adults moderated the relations between youths' community violence exposure and subsequent physical aggression. Participants were 2575 middle school students (M_age = 12.3, SD = 1.00; 52% female) in the southeastern U.S. who completed surveys collected in the fall, winter, spring, and summer. The sample was predominantly African American (72%). High adult support was associated with weaker relations between exposure to violence in the fall and aggression in the winter among male adolescents. High adult support was related to weaker relations between victimization in the fall and aggression in the winter among female adolescents. Strategies promoting supportive adult relationships may benefit male adolescents by buffering the adverse impact of community violence exposure.