RISING AUTISM PREVALENCE: REAL OR DISPLACING OTHER MENTAL DISORDERS? EVIDENCE FROM DEMAND FOR AUXILIARY HEALTHCARE WORKERS IN CALIFORNIA

Autism is a development disorder that has increased in prevalence from 0.5 to 14.7 per 1,000 children over 1970–2010. Using annual wages and provider counts from the American Community Survey and information from 21 regional development centers in California, we estimate the labor demand for auxiliary health providers. We focus on this subset of providers because, unlike physicians and psychologists who can diagnose autism, these workers cannot induce their own demand. If the incidence of autism is increasing independently of other mental disorders, then the demand for auxiliary health providers should increase, leading to higher wages and labor supply. Otherwise, the increase in autism diagnosis is merely displacing other mental disorders. We find that a 100% increase in autism cases increases the wages of auxiliary health workers over non‐autism health occupations by 8–11% and the number of providers by 9–14%. Furthermore, we find that one of every three new autism diagnoses is merely supplanting mental retardation diagnoses, but does not displace other mental disorders. These estimates suggest that at least part of the increase in autism diagnoses, about 50–65%, reflects an increase in the true prevalence of the disorder. (JEL L11, J2, J3)     

Beyond the urban stream syndrome: organic matter budget for diagnostics and restoration of an impaired urban river

In response to water quality standard violations linked to excessive organic matter (OM) and a lack of sampling data informing the Total Maximum Daily Load (TMDL), an organic matter budget was created to quantify and identify sources of OM in the lower Jordan River (Salt Lake City, UT). By sampling dissolved, fine, and coarse particulate OM, as well as measuring ecosystem metabolism at seven different sites, the researchers aimed to identify the origin of excess OM, and understand pathways by which different size classes of the OM pool are generated. The dissolved fraction (DOM; 94 %) was found to be the dominant form of OM transported within the river with fine particulate organic matter (FPOM; 6 %) the second most abundant, and coarse particulate organic matter (CPOM; 1 %) transport relatively insignificant in the overall OM budget. Primary production exceeded respiratory losses in the upper river, and this, along with OM inputs from two tributaries (where water reclamation facilities discharge into the river) delivered excess OM to the impaired lower reaches. Increasing stream metabolism index (SMI) with distance downstream (>1 in the lower river) further demonstrated that transport of excessive organic matter into the lower river was from upstream sources and not due to lateral inputs. This simple approach to characterizing the organic matter budget as it relates to water quality in the Jordan River was effective and could serve as a model for future studies attempting to quantify and identify sources of OM in urban ecosystems.     

EFFECTS OF WELFARE REFORM ON WOMEN'S VOTING PARTICIPATION

This study investigates the effects of welfare reform in the United States in the 1990s on voting among low‐income women. Using the November Current Population Surveys with the added Voting and Registration Supplement for the years 1990 through 2004 and exploiting changes in welfare policy across states and over time, we estimate the causal effects of welfare reform on women's voting registration and voting participation during the period in which welfare reform unfolded. During this time period, voter turnout was decreasing in the United States. We find robust evidence that welfare reform led to smaller declines in voting (about 3 to 4 percentage points, which translates to about 10% relative to the baseline mean) for women who were exposed to welfare reform compared to several different comparison groups of similar women who were much less exposed. The robust findings suggest that welfare reform had prosocial effects on civic participation, as characterized by voting. The effects were largely confined to presidential elections, were stronger in Democratic than Republican states, were stronger in states with stronger work incentive policies, and appeared to operate through employment, education, and income. (JEL D72, H53, I38, J21)     

Reasons for Seeking Help for a Gambling Problem: The Experiences of Gamblers Who Have Sought Specialist Assistance and the Perceptions of Those Who Have Not

This paper presents reasons for help-seeking data as reported by users of a national gambling helpline (help-seekers, HS, n = 125) as well as data pertaining to perceived reasons for seeking help as reported by gamblers recruited from the general population (non-help-seekers, NHS, n = 104). All data were collected via a structured, multi-modal survey. Participants in both groups considered help-seeking to be motivated by multiple factors (mean of 6.8 and 10.6 responses, respectively). Responses indicative of financial concern were most frequently reported by both HS and NHS participants (82 & 90%, respectively). Over a third of HS participants (35%) also identified financial concern as their primary reason for seeking help and 50% of NHS participants perceived financial concern to be the primary motivator for seeking help in a problem gambling context. Common types of secondary influence (other than financial concern) included psychological distress (HS & NHS participants), problem prevention (HS participants), rational thought (HS participants), physical health issues (HS participants), and relationship issues (NHS participants). The implications for promoting greater or earlier help-seeking activity amongst problem gamblers are discussed.

From ‘temporary migrants’ to ‘permanent residents’: Indian H-1B visa holders in the United States

Literature on international migration from India in the past has focused on the formation and development of ‘Indian diasporas’; that is, Indians who have moved to various parts of the world and maintain socio-economic, cultural and political lives in India as well as other countries. However, little attention has been paid toward ‘temporary migrants’ who have migrated to different countries with a temporary visa and in the course of time extended their visas to become ‘permanent residents’. Temporary migration from India has become a common trend over the last two decades, especially since the acceleration of globalisation and the developments in the fields of information and communication technologies. Although it is argued that this type of migration took place in the past – for instance, Indians migrated to British, French, Dutch and Portuguese colonies during the nineteenth and early part of the twentieth centuries as indentured labourers for a period of three to five years and later extended their stays – what is new about the current trend is the new state policies of different host countries and the socio-economic and cultural background of the immigrants. This paper is an exploratory study of this contemporary phenomena of movement from ‘temporary migrant’ to ‘permanent resident’, a phenomena which has not been given much attention by academicians and policy makers in India. The present paper outlines this trend with an illustration of Indian H-1B visa holders in the United States.     

电影制作和发行过程中的安全漏洞分析

电影产业主要关心的一个问题是非法的（即未经授权的）电影复制行为。尽管非法的电影拷贝已经借助便携式物理媒介而得到传播,但低成本的高速宽带连接和P2P文件共享网络则能提供极其高效的传播媒介。本文对电影的制作和发行过程进行了简要分析,并指出了一些潜在的安全漏洞,这些漏洞使得非法电影拷贝能够被那些试图再次传播之的人所获取。     

Exploitation Strategy and Performance of Contract Manufacturing Exporters: The Mediating Roles of Exploration Strategy and Marketing Capability

Contract manufacturing exporters (CMEs) receive a meagre share of global value chain returns, primarily because of the mundane and exploitative nature of the activities they perform in their dependency relationships with lead firms. We posit that CMEs can enhance their performance by capitalizing on their exploitation strategy. Exploitation strategy triggers exploration strategy which requires building marketing capabilities for enhanced performance. Based on data from 154 Vietnamese CMEs, we find significant indirect only mediation effects of: 1) exploration strategy between exploitation strategy and export performance; and 2) marketing capability between exploration strategy and export performance. Further, we find significant indirect only serial mediation of exploration strategy and marketing capability between exploitation strategy and export performance. The findings are also supported and contextualized based on illustrative quotes from face to face semi-structured interviews with senior managers of 10 Vietnamese CMEs. The findings suggest that CMEs' that consciously capitalize on the exploitation strategy by seeking exploration opportunities while building their marketing capability exhibit enhanced performance.     

WHEN DO SHELTER‐IN‐PLACE ORDERS FIGHT COVID‐19 BEST? POLICY HETEROGENEITY ACROSS STATES AND ADOPTION TIME

This study explores the impact of Shelter‐in‐Place Orders (SIPOs) on health, with attention to heterogeneity in their impacts. First, using daily state‐level social distancing data, we document that adoption of a SIPO was associated with a 9%–10% increase in the rate at which state residents remained in their homes full‐time. Using daily state‐level coronavirus case data, we find that approximately 3 weeks following the adoption of a SIPO, cumulative COVID‐19 cases fell by approximately 53.5%. However, this average effect masks important heterogeneity across states‐early adopters and high population density states appear to reap larger benefits from their SIPOs. (JEL H75, I12, I18)     

Computerized Immediate Feedback Increases Product Recall Efficiency Due to Interlocking Contingencies in Food Manufacturing

Food manufacturing companies are challenged with tracking their products so that the company will be able to remove that product from circulation quickly and effectively in the event of a product recall. The accuracy of a recall is dependent upon the accuracy of a product selected for order fulfillment, with the correct product going to the correct store. An integrated solution using wireless handheld computers was programmed to provide immediate visual and audio feedback to the order selectors, in order to prevent errors in order selection. For each case selected, vital information was archived to databases in real-time, which in turn, allowed the company’s safety manager to perform quick and accurate product recall tracking in mock recall drills and state inspections. Results were discussed in terms of the expanding the role of the Organizational Behavior Management professional who addresses operational and ethical issues associated with technologies for better consumer safety.