Mogong and chieftaincy in western Guangxi and Southeast Asia

This article is devoted to establishing, by means of textual and comparative evidence, a link between the religious practitioners called mogong (Zh. bouxmo) and chiefly houses. The mogong are male priests who recite texts in the ‘local’ language, in this case Zhuang or Bouyei. They are also found among other Tai peoples, including the Dai in Yunnan, the Tày and Nùng in Vietnam, and also among other ethnic groups in mainland Southeast Asia. Theirs is a very ancient tradition, dating back possibly 2000 years. Most of the studies on mogong in the PRC have treated the mogong either as an instance of ‘primitive religion’ or as ‘folk beliefs’, and some scholars have declared that the mogong had no connection with politics or government. My argument, based on new evidence from a survey of Zhuang vernacular texts, is that the Zhuang mogong only became village-level vernacular priests after the disbandment of the native chieftaincies, starting in the early eighteenth century, and that before that they were attached directly to chiefly lineages, as they still were in Yunnan and in Southeast Asia until the 1940s. The mogong were responsible for the most important triennial sacrifices to the guardian spirits of the domain.     

Sharp Threshold Detection Based on Sup-Norm Error Rates in High-Dimensional Models

We propose a new estimator, the thresholded scaled Lasso, in high-dimensional threshold regressions. First, we establish an upper bound on the ?_∞ estimation error of the scaled Lasso estimator of Lee, Seo, and Shin. This is a nontrivial task as the literature on high-dimensional models has focused almost exclusively on ?₁ and ?₂ estimation errors. We show that this sup-norm bound can be used to distinguish between zero and nonzero coefficients at a much finer scale than would have been possible using classical oracle inequalities. Thus, our sup-norm bound is tailored to consistent variable selection via thresholding. Our simulations show that thresholding the scaled Lasso yields substantial improvements in terms of variable selection. Finally, we use our estimator to shed further empirical light on the long-running debate on the relationship between the level of debt (public and private) and GDP growth. Supplementary materials for this article are available online.     

“Better safe than sorry”—Reasons for consulting care due to decreased fetal movements

Background

Experience of reduced fetal movements is a common reason for consulting health care in late pregnancy. There is an association between reduced fetal movements and stillbirth.

Explaining Changing Suicide Rates in Norway 1948–2004: The Role of Social Integration

Using Norway 1948–2004 as a case, I test whether changes in variables related to social integration can explain changes in suicide rates. The method is the Box-Jenkins approach to time-series analysis. Different aspects of family integration contribute significantly to the explanation of Norwegian suicide rates in this period. The estimated effect of separations is stronger than the effect of divorces, both for men and women, probably because separations are closer in time to the “real” marital breakup. This difference has not been demonstrated in earlier time-series research. Marriages decrease the suicide rates for males. The unemployment estimate for men has a negative sign, contributing to fewer suicides. Both increasing alcohol (beer) consumption and fewer marriages seem to be implicated in the soaring suicide rate for young men since 1970.

Adolescents' Plans for Family Formation: Is Parental Socialization Important?

This study examines adolescents' plans for family formation (marriage and parenthood) and the congruence between their plans and their mothers' expectations and behaviors within these spheres. Using log‐linear and ordinary least squares (OLS) regression models to analyze data from the National Survey of Children (N= 724 ), this study addresses mechanisms of family socialization (e.g., modeling and defining influence) informed by social learning and symbolic interactionist theories. It also reveals whether and how these mechanisms vary according to gender. Results reveal that family factors best predict children's plans, although peer groups also may be important. In addition, defining influence is stronger than modeling influence.     

Probability of Low‐Altitude Midair Collision Between General Aviation and Unmanned Aircraft

Unmanned aircrafts (UA) usually fly below 500 ft to be segregated from manned aircraft. However, while general aviation (GA) usually do fly above 500 ft in areas where UA are allowed to operate, GA will at times also fly below 500 ft. Consequently, there is a distinct risk of near‐miss encounters as well as actual midair collisions (MACs). This work presents a model for determining this risk based on physical parameters of the aircraft and actual figures for the numbers of GA in a given airspace, as well as the probability of having GA below 500 ft. The aim is to achieve a prediction with a precision better than one order of magnitude relative to the true MAC rate value. The model is applied to Danish airspace and the MAC rate for unmitigated operations of UA is found to be approximately 10^?6 MAC per flight hour. The model is particularly well suited for beyond visual line‐of‐sight operations, and is useful for UA operators for conducting risk assessment of planned operations as well as for regulators for determining appropriate operational requirements.     

RISK AVERSION RELATES TO COGNITIVE ABILITY: PREFERENCES OR NOISE?

Recent experimental studies suggest that risk aversion is negatively related to cognitive ability. In this paper we report evidence that this relation may be spurious. We recruit a large subject pool drawn from the general Danish population for our experiment. By presenting subjects with choice tasks that vary the bias induced by random choices, we are able to generate both negative and positive correlations between risk aversion and cognitive ability. Our results suggest that cognitive ability is related to random decision making rather than to risk preferences. (JEL: C81, C91, D12, D81)     

I get by with a little help from my supervisor: Creative-idea generation,idea implementation,and perceived supervisor support

In two studies using both field (165 employees and their 24 direct supervisors from a manufacturing firm in Study 1) and experimental (123 second-year undergraduate student participants in lab Study 2) data, we explore how perceived supervisor support acts as a crucial contingency that enables higher levels of idea implementation from creative-idea generation. First, we suggest that excessive creative-idea generation (in terms of both frequency and creativity of ideas) can lead to diminished returns with regard to idea implementation. Drawing on a resource allocation framework, we hypothesize and find a curvilinear inverse U-shaped relationship between employee creative-idea generation and implementation. Second, we find that higher levels of perceived supervisor support dampen the curvilinear relationship between creative-idea generation and idea implementation. Accordingly, perceived supervisor support seems to provide employees with access to resources and support needed for idea implementation, making highly creative ideas more implementable.