The most widely cited European data on work hours mismatches at the couple level date back to the 1990s. The general gist of analyses of these data was that "overworked" dual-earner couples frequently preferred work hours reductions, especially those with childcare responsibilities. This study uses more recent data from the European Social Survey (2010-12) to update the available evidence on actual and preferred breadwinner models and on the occurrence and determinants of work hours mismatches among couples in Europe. The focus is on differences between demographic groups and countries in the degree to which cohabiting couples are either underemployed (working fewer hours than desired) or overemployed (working more hours than desired). Our analyses show that about one third of couples are underemployed, while only one in ten report being overemployed. We identify low education and the presence of children below school age as risk factors for underemployment, whereas highly educated women and fathers of teenagers tend to be overemployed. In a comparison of 16 European countries, we find couples in Greece, Ireland, Slovenia, and Spain to be most at risk of experiencing underemployment - in the countries that were most strongly affected by the recession. The effects of children on the experience of hours mismatches are found to vary across Europe - a particularly strong association of children below school age with parental underemployment is observed in Central and Eastern Europe, Finland, and Germany and a particularly weak one in Great Britain, Greece, Ireland, and Sweden.

Neste trabalho é apresentado estudo sobre a racionalização da operação numa empresa de ônibus que realiza transporte fretado de funcionérios de empresas e de escolas. O estudo consistiu no levantamento completo e detalhado dos serviços prestados pela empresa, na análise do sistema de operação empregado visando identificar possíveis estratégias para racionalização da operação sem prejuízo da qualidade, no desenvolvimento dos planos para implementação desses planos. Na primeira parte do trabalho é apresentada a fundamentação teórica do estudo, com discussão do problema da racionalização no transporte de pessoas e produtos e do conceito de qualidade e de eficiência no transporte por ônibus fretados. Também é reproduzida a legislação trabalhista em vigor (Consolidação das Leis Trabalhistas - CLT e Acordo Coletivo de Trabalho da Categoria), que constitui o arcabouço legal condicionador do processo de otimização da mão de obra (motoristas). Os principais resultados do estudo de caso realizado são os seguintes: as características dos serviços prestados pela empresa afastam a possibilidade de redução da frota utilizada e da quilometragem percorrida; a possibilidade de racionalização se limita a um único canal - um melhor aproveitamento da mão de obra (motoristas), por meio da redução das horas ociosas remuneradas sem trabalho produtivo e das horas extras que são pagas com valores maiores que os das horas de trabalho normais; e os planos de racionalização da mão de obra propostos levam a benefícios econômicos significativos. / A study for the rationalization of chartered bus operation serving blue-collar workers and school children is presented in this work. The research started with a comprehensive survey of the services supplied by the company. It was followed by an analysis of the existing operation system in order to identify rationalization strategies that would not worsen the service quality. The development of implementation plans for the selected strategies were the next step of the study along with the evaluation ofthe economic benefits resulting from those plans. A theoretical framework is presented in the first part of the text, in which the problems associated with the rationalization of people and goods transportation is discussed. The concepts of effectiveness and efficacy of chartered bus transport are also treated in the same section. Next, the labor legislation in force (Consolidation of the Labor Laws - C.L.T. and Collective Agreement of the Work of the Category) is reproduced and commented. This law constitutes the legal framework that regulates the workforce optimization, including drivers. Based on the case studied, the main conclusions are: it is difficult to reduce the fleet and the distance traveled by the company due the characteristics of the services supplied - the only way to reduce costs is to make a better use of the workforce (drivers) forcing a reduction of idle and overtime paid hours, which usually have greater values than the normal working hours. Finally, the study shows that the proposed plans for the rationalization of the workforce produce significant economic benefits.

Charles de Valois (1446-1472) was a prince in fifteenth-century France. During his short lifetime, Charles endeavored to gain more authority while in conflict with his brother Louis XI, who was king. Although a minor political character in French history, Charles did demonstrate his power in several artistic ways. One commission by the young royal was a manuscript now known as the Hours of Charles of France. Two pages of this text, the Annunciation to the Virgin, are decorated with rich imagery and iconography used to exhibit Charles' desire for greater authority. The manuscript has only been discussed stylistically, and therefore this thesis examines the content of these pages in terms of secular imagery, religious symbolism, and the prince's connection to the priestly Virgin Mary. These aspects all relate to Charles' display of authority. To fully understand Charles' propaganda, this thesis first examines secular imagery within the manuscript pages. The analysis of worldly symbols of power, such as knighthood, fashion, ornamentation, and architecture, present Charles' desire for greater wealth and power. In addition, this thesis discusses the Virgin Mary in connection with the prince's political imaging. By looking at religious imagery that supports Mary in her role as priestess, this thesis considers how Charles attaches himself to her heightened power. Through both secular and spiritual characteristics, Charles' authority was elevated during a period of political uncertainty and monarchical unrest.

Economia / Doctoral Programme in Economics / Estudos empíricos anteriores mostram que quando as decisões são tomadas num contexto de incerteza e quando existem custos de ajustamento lineares ou fixos (não convexos), as empresas não ajustam continuamente o nível de emprego de forma a acomodar choques da procura do seu produto. Consequentemente, emergem períodos de inércia o que é suficiente para produzir histerese. Nesta dissertação estuda-se a existência de histerese da dinâmica do emprego ao nível da empresa e ao nível agregado. Em primeiro lugar, efectua-se uma descrição do padrão de ajustamento do emprego a nível microeconómico e estuda-se a sua relação com três fontes de inércia: i) a existência de custos de ajustamento não convexos; ii) a existência de incerteza na dinâmica da procura agregada; iii) a possibilidade de utilização da margem intensiva de ajustamento do factor trabalho (ajustamento através do número de horas por trabalhador). Segundo, analisamos as implicações agregadas do comportamento microeconómico observado. Se ao nível microeconómico os modelos de histerese oferecem uma boa explicação para a observação empírica, ao nível macroeconómico tem-se revelado mais difícil identificar a existência de histerese na dinâmica do emprego. De facto, as séries agregadas do emprego tendem a ser mais alisadas, e por essa razão, aparentemente inconsistentes coma existência de histerese. No entanto, se tivermos em conta as diferentes propriedades da histerese fraca (histerese ao nível micro) e da histerese forte (histerese ao nível macro) e se considerarmos a existência de empresas heterogéneas, isto é, se o problema da agregação for explicitamente considerado, como deve ser na presença de custos de ajustamento não convexos, então deverá ser possível verificar a existência de sinais de histerese ao nível macroeconómico. A análise empírica foi efectuada com dados mensais de empresas industriais portuguesas ao longo de um período de 11 anos. A amostra contém informação sobre o nível de emprego e sobre o nível de horas de trabalho e sobre um conjunto de outras variáveis que podem ser utilizadas como proxies de choques. No sentido de obter uma primeira aproximação ao processo de ajustamento do emprego, efectuamos uma análise descritiva sobre a variação líquida do emprego e testamos a existência de histerese ao nível da empresa através da estimação de um modelo de resposta assimétrica do emprego, interpretado á luz do modelo de histerese Non-Ideal Relay. De forma a testar a existência de histerese na dinâmica do emprego a nível agregado, aplicamos testes construídos com base em métodos computacionais baseados no modelo de Preisach e no Linear Play Model de histerese. No sentido de comparar os resultados a nível internacional, aplicamos os testes referidos a dados agregados da OCDE e EUROSTAT de 19 países da OCDE.Concluímos que: i) existem sinais claros da existência de inércia ao nível microeconómico causada pela existência de custos de ajustamento não convexos e pela possibilidade de ajustamento através da variação do número de horas de trabalho por trabalhador; ii) os sinais de histerese que normalmente se encontram ao nível microeconómico não se desvanecessem totalmente ao nível macroeconómico; iii) as propriedades de histerese são particularmente relevantes na dinâmica do emprego das empresas pequenas; iv) encontramos evidência significativa sobre a interacção entre a flexibilidade do ajustamento do factor trabalho através da variação do número de horas de trabalho por trabalhador e a existência de histerese no emprego. Ao contrário, não encontramos evidência significativa sobre a interacção entre a existência de incerteza na dinâmica da procura agregada e a existência de histerese no emprego. Estes resultados mostram que a dinâmica do emprego a nível agregado é condicionada significativamente pela existência de um padrão de ajustamento discreto ao nível microeconómico. / Previous empirical studies have shown that when decisions are made under uncertainty and adjustment costs are fixed or linear in structure (non-convex), firms do not permanently adjust employment in order to accommodate demand shocks. Consequent to this, periods of inertia would emerge and that is sufficient to produce hysteresis. This dissertation studies the existence of hysteresis in the dynamic path of employment at the firm and aggregate level. Firstly, we describe the path of micro-level employment and we establish its relationship with three sources of inertia: i) the existence of non-convex costs of adjustment; ii) uncertainty concerning the dynamics of aggregate product demand; iii) utilization of the intensive margin of adjustment of the labor input (adjustment through hours per employee). Secondly, we analyze the aggregate implications of the observed micro behavior. If at the micro level models of hysteresis offer a good explanation for the empirical evidence, at the macro level it has been more difficult to identify the existence of hysteresis in the dynamics of employment. Aggregate series of employment tend to look smoother and, for that reason, they are apparently inconsistent with the presence of hysteresis. However, if we take into consideration the different properties of weak hysteresis (hysteresis at the micro level) and strong hysteresis (hysteresis at the macro level), and if we take into account firms heterogeneity, i.e. if the problem of aggregation is explicitly considered as it should be in the presence of non-convex costs of adjustment, it would still be possible to uncover signs of hysteresis at the macro-level. The empirical analysis was carried out with a monthly panel of Portuguese manufacturing firms spanning a period of eleven years. This dataset has information on both employment and hours of work as well as on a good set of other variables that may be taken as proxies for shocks. To obtain a first insight into the process of employment adjustment, we provide some descriptive statistics on net employment changes, and to test the existence of hysteresis at the micro level we estimate a model of employment asymmetric response with path dependence interpreted under the Non-Ideal Relay model of hysteresis. To test the existence of hysteresis in the aggregate employment dynamics, we apply tests constructed with the help of computational methods based on the Preisach Model and on the Linear Play Model of Hysteresis. To put our results in an international setting, the aggregate analysis was also made with aggregate data from OECD and EUROSTAT. We conclude that: i) there are strong signs of the existence of sources of employment inertia at micro level, caused by non-convex adjustment costs and by the adjustment of labor input through the number of hours per employee; ii) signs of hysteresis commonly found at the micro level, do not completely vanish at the macro level; iii) hysteresis properties are particularly discernible for small firms even if they are less so in the case of larger units; vi) we find strong evidence of the interrelations between the flexibility of the labor input adjustment through hours of work and the existence of aggregate employment hysteresis, but only weak evidence of the interrelations between the existence of uncertainty in the dynamics of aggregate demand and hysteresis. These findings imply that aggregate employment is significantly shaped by lumpy adjustment at the micro level.

No description available.

Japanese workers are facing a threat of literal death from working too hard. In 1978, karōshi, defined as death or severe disability from overwork, was added to the Japanese dictionary. Japan is recognized as having one of the worst working conditions in the developed world with awfully long working hours. This thesis deconstructs the underlying psychological, cultural and economic reasons that contribute to the long working hours in Japanese companies. Then, this thesis examines the previous and current efforts by the Japanese, South Korean and German governments to reduce working hours in their countries to prevent the fatal consequences of overwork. It concludes by recommending the Japanese government to continue the research on overtime and death, raise awareness through education and outreach, enforce strict labor laws, and to adopt a method of flexible working hours.

Current practices based on estimated volume and basic queuing theory to calculate delay resulting from non-recurrent congestion do not account for the day-to-day fluctuations in traffic. In an attempt to address this issue, probe GPS data are used to develop impact zone boundaries and calculate Vehicle Hours of Delay (VHD) for incidents stored in the Traffic Response and Incident Management Assisting the River City (TRIMARC) incident log in Louisville, KY. Multiple linear regression along with stepwise selection is used to generate models for the maximum queue length, the average queue length, and VHD to explore the factors that explain the impact boundary and VHD. Models predicting queue length do not explain significant amounts of variance but can be useful in queue spillback studies. Models predicting VHD are as effective as the data collected; models using cheaper-to-collect data sources explain less variance; models collecting more detailed data explained more variance. Models for VHD can be useful in incident management after action reviews and predicting road user costs.

Shift work is becoming increasingly prevalent in our society, with 17% of the full-time work force and 36% of the part-time work force working non-standard shifts (Beers, 2000). The goal of this study was to explore the relationships between several shift work variables and retention of employees working in a retail organization that is open 24-hours a day. Results indicated no significant differences between workers in fixed versus mixed shift schedules on job satisfaction or role stress. Contrary to my hypothesis, mixed shift workers reported higher levels of commitment and remained with the organization longer than fixed shift workers. As predicted, night shift workers reported lower levels of job satisfaction and organizational commitment than evening workers. However contrary to predictions, there were no significant differences between morning and night shift workers. Supervisor support did not moderate the relationship between shift work and commitment, satisfaction, or role stress. However is was a significant moderator of the relationship between day versus evening shift and role stress, with individuals working evening shifts and perceiving high levels of supervisor support remaining with the organization the longest.

The thesis examines Czech translations from the Roman Breviary created in the period between 1800 and the liturgical reform of the Second Vatican Council. Catalogue of such translations has been prepared. Based on the catalogue, the most important text families are identified and described in detail. It turns out that most of the translations were created for purposes of publicly celebrated Vespers, chanted in the vernacular. Based on historical experience with this pre-conciliar paraliturgical form, a few final suggestions are made for public celebration of the Liturgy of the Hours today.

The effect of changes in employment hours on changes in household task hours was studied. Data were used from the National Survey of Families and Households (NSFH) waves one and two. Wave one was a probability sample of 13,017 age 19 and older in the United States who were interviewed in person in 1987-88. Wave two consisted of the original NSFH sample who were reinterviewed five years later in 1992-94. A subsample of 1233 men and women was created by selecting employed men and women who were continuously married to the same spouse, lived in the same household, and had a least one biological child under 18 living in the household at wave one and wave two. After controlling for age in years, education in years, race, wage rate, and age of youngest child, the subsample was used to determine if changes in employment hours caused changes in household task hours. Household task hours were categorized by feminine, masculine, and neutral, as well as total household task hours. Lag regression analysis without gender interaction effects found that a one hour increase in employment hours caused a sixteen minute decrease in total household tasks hours, a twelve minute decrease in feminine household task hours, and a two minute decrease in neutral household tasks among married men and women with children. Lag regression analysis with gender interaction effects found that a one hour increase in employment hours caused a sixteen minute decrease in total household tasks hours and a fourteen minute decrease for married women with children only. No statistically significant relationship between changes in employment hours and changes in any category of household tasks hours was found for married men with children when gender interactions were controlled. The results of this study supports the interaction of time availability and gender in explaining changes in household tasks hours. / Graduation date: 2001