Growing up with grief: revisiting the death of a parent over the life course

In the era of managed care, evidence-based practice, and short term, solution focused interventions, clinicians in agency based settings generally do not have the luxury of long-term contact with bereaved children. Although a substantial, yet controversial, literature argues that children cannot fully resolve early loss until adulthood, limited attention is given to how children's understandings of early loss shift as their cognitive capacities mature. This article argues the emotional experience of grief shifts: 1) as children grapple with both normative life changes and the tasks of mourning, and 2) as their cognitive and emotional development allow them to understand and question aspects of their deceased parent's life and death in new ways. This article will present an overview of longitudinal and cross-sectional research on the long-term impact of childhood grief. We then suggest the ways bereaved children and adolescents revisit and reintegrate the loss of a parent as their emotional, moral, and cognitive capacities mature and as normative ego-centrism and magical thinking decline. To demonstrate these ideas, we draw on the case of a parentally bereaved boy and his family presenting across agency-based and private-practice work over the course of 14 years. This case suggests the need for coordinated care for children who are moving beyond the initial trauma of parental loss into various stages of grief and reintegration. While the loss of a parent is permanent and unchanging, the process is not: it is part of the child's ongoing experience. (Worden, 1996, p. 16).     

THE RELATIONSHIP BETWEEN CHILD HEALTH,DEVELOPMENTAL GAPS,AND PARENTAL EDUCATION: EVIDENCE FROM ADMINISTRATIVE DATA

We use administrative German data to examine the role of physical and mental health conditions in explaining developmental gaps between children whose parents have different educational levels. Specifically, we employ sibling fixed effect models to estimate the effect of a comprehensive list of childhood health conditions—diagnosed by government physicians—on the cognitive and verbal ability of pre‐school children. We also apply decomposition methods to examine the extent to which gaps in child development can be attributed to child health conditions. While most physical health conditions have small and insignificant effects, mental health conditions, in particular hyperactivity, have a large and significant effect on development. Mental health conditions account for 14%–36% of the gap in cognitive ability and for 23%–24% of that in verbal ability. Thus, policies aimed at reducing disparities in child development and socioeconomic inequalities later in life should focus more on the early diagnosis and effective treatment of mental health conditions.     

PARENTAL INCOME,LIFETIME INCOME,AND MORTALITY

This article studies the relation between parental economic resources and mortality later in life. We use a data set on a cohort of individuals born in 1928 in the county of Malmö in southern Sweden, which contains exceptionally detailed measures of parental household income from five years during the individuals' childhood between 1929 and 1942. The data also contain very rich information on individual earnings throughout these individuals' entire life cycle that allows us to construct a measure of lifetime earnings. Date and cause of death are obtained from national registers. Using Cox proportional hazard models, we find an inverse relationship between parental income and mortality, also when controlling for individual lifetime income and when studying those with high education separately. A competing risk analysis shows the relation between parental income and mortality to apply to cancer as the cause of death. (JEL: D31, I10, I12, J10)     

MATERNAL EDUCATION,HOME ENVIRONMENTS,AND THE DEVELOPMENT OF CHILDREN AND ADOLESCENTS

We study the intergenerational effects of maternal education on children’s cognitive achievement, behavioral problems, grade repetition, and obesity, using matched data from the female participants of the National Longitudinal Survey of Youth 1979 (NLSY79) and their children. We address the endogeneity of maternal schooling by instrumenting it with variation in schooling costs during the mother’s adolescence. Our results show substantial intergenerational returns to education. Our data set allows us to study a large array of channels which may transmit the effect of maternal education to the child, including family environment and parental investments at different ages of the child. We discuss policy implications and relate our findings to the literature on intergenerational mobility.     

The substitution of governance mechanisms in the evolution of family firms

This paper examines how family firms substitute corporate governance with family governance and self-governance at different stages of their development. We argue that the types of agency problems that family firms face as they pass from one generation to the next determine the extent to which these mechanisms can be used as substitutes for one another. Our empirical investigation provides evidence that in the early stages of a family firm's life cycle, instruments of self-governance lessen the need for mechanisms of corporate governance, whereas in the later stages, instruments of family governance can substitute for mechanisms of corporate governance.     

Childhood general cognitive ability predicts leadership role occupancy across life: Evidence from 17,000 cohort study participants

Research in the leadership literature has not yet identified links between childhood general cognitive ability and leadership potential in adulthood. We tested whether early cognitive ability contributed to leadership role occupancy across four decades in a sample of 17,000 working individuals from two representative British cohorts. On average a 1 standard deviation increase in cognitive ability predicted a 6.2 percentage point higher probability of leadership role occupancy. In Study 1, adjusted models showed that 37.3% of high cognitive ability children (+ 1 SD) occupied leadership positions compared to 25.4% of low cognitive ability (− 1 SD) children and this gap was even more pronounced in Study 2 (27.8% vs. 15.1%). Cognitive ability showed a graded association with the number of employees supervised in both studies and educational attainment partially explained the cognitive ability–leadership association. The results suggest that early individual differences in childhood general cognitive ability may profoundly shape trajectories of leadership across working life.     

CRITICAL PERIODS DURING CHILDHOOD AND ADOLESCENCE

We identify the ages that constitute sensitive (or critical) periods in children's development towards their adult health status, skills, and human capital. For this, we use data on families migrating into Sweden from countries that are poorer, with less healthy conditions. Late‐life health is proxied by adult height and other adult outcomes. The relation between siblings’ ages at migration and their adult outcomes allows us to estimate the causal effect of conditions at specific childhood ages. We effectively exploit that, for siblings, the migration occurs simultaneously in calendar time but at different developmental stages (ages). We find evidence that the period just before the puberty growth spurt constitutes a critical period for adult height and we find related critical periods for adult cognition, mental health, and education.     

Process Improvement,Learning, and Real Options

We use a real‐options approach to analyze investments in process improvement. We develop a simple, stochastic model of a firm making investment decisions in process improvement. Our analysis offers several interesting insights into investments in process improvement. First, early investment in process improvement results in valuable knowledge, which helps increase the value of the option to invest in process improvement in future periods. This may motivate a firm to invest in process improvements as early as possible. Second, it may be optimal for a firm to stop investing when such investments do not create enough value in the later stages of the investment horizon. Third, although one would expect the state of a firm's process relative to that of other firms to impact a firm's decision to invest in process improvement, this study finds that the impetus is conditional and identifies these conditions. Finally, in such an environment, the delay of investment in process improvement incurs an opportunity cost for a firm, and we show that the traditional net present value rule must incorporate this opportunity cost and the knowledge‐induced change in future option values to lead to a correct investment decision.     

Cost Allocation in Manufacturing–Remanufacturing Operations

For firms remanufacturing their products, the total life‐cycle costs and revenues from new and remanufactured products determine their profitability. In many firms, manufacturing/sales and remanufacturing/remarketing operations are carried out in different divisions. Each division is responsible for only part of the product's life cycle. Practices regarding transfer pricing across divisions vary significantly among companies, affecting the life‐cycle profit performance of the product. In this research, we identify characteristics of transfer prices that achieve the firm‐wide optimal solution. To this end, we consider a manufacturer who also undertakes remanufacturing operations and we focus on price (quantity) decisions. We determine that a cost allocation mechanism that allocates a portion of the initial production cost to each of the two stages of the product life cycle should be used. We also conclude that cost allocation should be implemented as a fixed cost allocation, where charges to the remanufacturing division should be determined independently of the actual quantity of units remanufactured.     

Macht und Einfluss verschiedener Abteilungen in fr��hen und sp?ten organisationalen Lebenszyklusphasen

The present research examines the performance consequences of the influence of four major departments (sales, marketing, R&D, and manufacturing) and integrates organizational life cycle stages as moderating variables. Further, the article derives a hypothesis that addresses the influence dispersion among the departments that is most beneficial for performance. In order to validate this research model empirically, survey data from small and medium-sized German firms were gathered. Findings show that the optimal distribution of influence among departments is a function of the organizational life-cycle stage. While no moderating effects of the life-cycle stage emerge for the sales or manufacturing departments, a strong marketing department contributes to organizational performance only in early stages, while a strong R&D department contributes only in later stages. Further, the estimation of the non-linear regression model shows that a medium level of influence dispersion among departments is most beneficial to organizational performance.     

Werbe-Management in jungen Wachstumsunternehmen

New ventures with above-average growth potential vary significantly with regard to their success and show on average high failure rates which may be traced back to their lack of reputation in the market. This study examines whether systematic advertising planning and control can exert a positive influence on new venture performance and whether these effects vary across life cycle stages. The research model is based upon the contingent resource-based view and has been tested with a sample of 181 new ventures with high growth potential. Findings indicate that, indeed, a large portion of new venture performance can be explained by targeted planning and control methods and tools. As regards advertising control, a moderating effect of life cycle stages emerges: While a negative relationship between advertising control and performance exists in early stages, this relationship becomes significantly positive in later stages.     

Design for the Environment: Life‐Cycle Approach Using a Newsvendor Model

Introducing environmental innovations in product and process design can affect the product's cost and demand, as well as the environmental impact in different stages of its life cycle (such as manufacturing and use stages). In this article, we advance understanding on where such design changes can be most effective economically to the firm and examine their corresponding environmental consequences. We consider a profit maximizing firm (newsvendor) deciding on the production quantity as well as its environmentally focused design efforts. We focus our results along the two dimensions of demand characteristics and life‐cycle environmental impact levels, specifically functional vs. innovative products, and higher manufacturing stage environmental impact vs. higher use stage environmental impact. We also discuss the environmental impact of overproduction and how it relates to the different types of products and their salvage options. We find that although the environmental impact per unit always improves when firms use eco‐efficient or demand‐enhancing innovations, the total environmental impact can either increase or decrease due to increased production quantities. We identify the conditions for such cases by looking at the environmentally focused design efforts needed to compensate for the increase in production. We also show that the environmental impact of overproduction plays an important role in the overall environmental impact of the firm. We conclude by applying our model to different product categories.     

Product Life‐Cycle Management of Packaged Software

A software product becomes less valuable for its consumers over time due to technological and economic obsolescence. As a result, firms have an opportunity to introduce and sell upgrades that provide higher utility to consumers compared to an older and out‐of‐date software product. In a market that is growing and consists of homogeneous customers, we prove that the optimal upgrade intervals are monotonically increasing throughout the product's life cycle solely because of demand and cost considerations. This finding is in conformity with empirical evidence, thus validating our theoretical model. We then present comparative statics results to show that increase in the rate of obsolescence or network externalities may sometimes increase upgrade intervals for early upgrades and decrease these for later upgrades in the product's life cycle, but increase in market growth rate always decreases these intervals. Further, when successive software upgrades are forward compatible, upgrade intervals are longer than when they are not. Finally, we present three separate extensions of our model to showcase the robustness of our results. Since upgrade development costs depend on upgrade intervals, these insights help managers understand how costing for upgrades changes over the product's life cycle.     

Multi‐Echelon Inventory Management under Short‐Term Take‐or‐Pay Contracts

We extend the Clark–Scarf serial multi‐echelon inventory model to include procuring production inputs under short‐term take‐or‐pay contracts at one or more stages. In each period, each such stage has the option to order/process at two different cost rates; the cheaper rate applies to units up to the contract quantity selected in the previous period. We prove that in each period and at each such stage, there are three base‐stock levels that characterize an optimal policy, two for the inventory policy and one for the contract quantity selection policy. The optimal cost function is additively separable in its state variables, leading to conquering the curse of dimensionality and the opportunity to manage the supply chain using independently acting managers. We develop conditions under which myopic policies are optimal and illustrate the results using numerical examples. We establish and use a generic one‐period result, which generalizes an important such result in the literature. Extensions to cover variants of take‐or‐pay contracts are included. Limitations are discussed.     

Lifetime Buy Decisions with Multiple Obsolete Parts

Life‐cycle mismatch occurs when the life cycles of parts end before the life cycles of the products in which those parts are used. Lifetime buys are one tactic for mitigating the effect of part obsolescence, where a quantity of parts is purchased for the remaining life of a product. We extend prior work that determines optimal lifetime buy quantities for one product with one obsolete part by providing an analytic solution and two simple heuristic policies for the optimal lifetime buy quantities when many parts become obsolete over a product's life cycle. We determine which of our two heuristics is most accurate for different product life cycles, which yields a metaheuristic with increased accuracy. That analysis also reveals critical perspectives in making lifetime buy decisions with nonstationary life‐cycle demand patterns.     

Peer performance evaluations in global virtual teams: A longitudinal analysis of surface- and deep-level attributes

Most research on peer performance evaluations (PPEs) has been conducted using co-located teams, assuming that PPEs are static, and focusing on the effects of PPEs, while ignoring how attributes of the evaluated individual influence PPEs, and if PPEs may vary over time. The present study advances this line of research by applying theory on impression formation and Tuckman's team stages model to explore the varying relevance of surface-level and deep-level individual attributes on PPEs across the team's life, and specifically in the context of global virtual teams (GVTs). We used longitudinal data across ten weeks of 831 individuals from 34 countries working in 239 different GVTs. We found that surface-level attributes, such as age and home country reputation, affect PPEs in the early stages of the team project, while the deep-level attributes, such as cognitive ability and English language proficiency, influence PPEs in the late phase of a GVT's life. We also found that cultural intelligence impacts PPEs relatively early on, and emotional intelligence is only relevant for PPEs when the GVT hits critical turning points, while gender influences PPEs throughout the project. We discuss the theoretical and managerial implications of our findings and provide directions for future research on PPEs in GVTs.     

The Effect of Early Cognitive Ability on Earnings Over the Life‐Cycle

This paper utilizes information on cognitive ability at age 10 and earnings information from age 20 to 65 to estimate the return to ability over the life‐cycle. Cognitive ability measured at an early age is not influenced by the individual's choices of schooling. We find that most of the unconditional return to early cognitive ability goes through educational choice. The conditional return is increasing for low levels of experience and non‐increasing for experience above about 15–25 years. The return is similar for men and women, and highest for individuals with academic education. Only a small part of the return can be explained by higher probability of having a supervisory position.     

Flexible Servers in Understaffed Tandem Lines

We study the dynamic assignment of cross‐trained servers to stations in understaffed lines with finite buffers. Our objective is to maximize the production rate. We identify optimal server assignment policies for systems with three stations, two servers, different flexibility structures, and either deterministic service times and arbitrary buffers or exponential service times and small buffers. We use these policies to develop server assignment heuristics for Markovian systems with larger buffer sizes that appear to yield near‐optimal throughput. In the deterministic setting, we prove that the best possible production rate with full server flexibility and infinite buffers can be attained with partial flexibility and zero buffers, and we identify the critical skills required to achieve this goal. We then present numerical results showing that these critical skills, employed with an effective server assignment policy, also yield near‐optimal throughput in the Markovian setting, even for small buffer sizes. Thus, our results suggest that partial flexibility is sufficient for near‐optimal performance, and that flexibility structures that are effective for deterministic and infinite‐buffered systems are also likely to perform well for finite‐buffered stochastic systems.     

Economic order quantity model with trade credit financing for non-decreasing demand

Researchers in the past have established their inventory lot-size models under trade credit financing by assuming that the demand rate is constant. However, from a product life cycle perspective, it is only in the maturity stage that demand is near constant. During the growth stage of a product life cycle (especially for high-tech products), the demand function increases with time. To obtain robust and generalized results, we extend the constant demand to a linear non-decreasing demand function of time. As a result, the fundamental theoretical results obtained here are suitable for both the growth and maturity stages of a product life cycle. In addition, we characterize the optimal solutions and obtain conclusions on important and relevant managerial phenomena. Lastly, we provide several numerical examples to illustrate the proposed model and its optimal solution.     

WHO IS ‘BEHAVIORAL’? COGNITIVE ABILITY AND ANOMALOUS PREFERENCES

In this paper, we ask whether variation in preference anomalies is related to variation in cognitive ability. Evidence from a new laboratory study of Chilean high‐school students with similar schooling backgrounds shows that small‐stakes risk aversion and short‐run discounting are less common among those with higher standardized test scores. The relationship with test scores survives controls for parental education and wealth. We find some evidence that elementary‐school GPA is predictive of preferences measured at the end of high school. Two laboratory interventions provide suggestive evidence of a possible causal impact of cognitive resources on expressed preferences.