Cohabitation and Family Formation in Japan

This paper documents the prevalence, duration, and marital outcomes of cohabiting unions in Japan. It then examines the correlates of cohabitation experiences and describes differences in the family formation trajectories of women who have and have not cohabited. Cohabitation has increased rapidly among recent cohorts of women and cohabiting unions in Japan tend to be relatively short and almost as likely to dissolve as to result in marriage. Life table analyses demonstrate that the cumulative probabilities of marriage and parenthood are roughly similar for women who did and did not cohabit. The most notable difference is in the pathways to family formation, with women who cohabited more likely to both marry subsequent to pregnancy and delay childbearing within marriage. Taken as a whole, these results suggest that cohabiting unions in Japan are best viewed as an emerging stage in the marriage process rather than as an alternative to marriage or singlehood. We conclude with speculation about the likelihood of further increases in cohabitation in Japan and the potential implications for marriage and fertility.

Marital Dissolution in Japan

Very little is known about recent trends in divorce in Japan. In this paper, we use Japanese vital statistics and census data to describe trends in the experience of marital dissolution across the life course, and to examine change over time in educational differentials in divorce. Cumulative probabilities of marital dissolution have increased rapidly across successive marriage cohorts over the past twenty years, and synthetic period estimates suggest that roughly one-third of Japanese marriages are now likely to end in divorce. Estimates of educational differentials also indicate a rapid increase in the extent to which divorce is concentrated at lower levels of education. While educational differentials were negligible in 1980, by 2000, women who had not gone beyond high school were far more likely to be divorced than those with more education.divorce, education, educational differentials, Japan, marital dissolution, marriage, marriage cohorts, synthetic cohort estimates

Labor force status transitions at older ages in the Philipines, Singapore, Taiwan, and Thailand, 1970--1990

While there is considerable evidence of a trend toward earlier retirement in the United States and Europe, trends in rapidly growing economies in other parts of the world have not been closely examined. This paper traces the labor force participation rates of older men and women in four Asian countries, the Philippines, Singapore, Taiwan, and Thailand, over the period of 1970 to 1990. Aggregate census data are used to calculate net transitions into and out of the labor force so as to permit the analysis of differences by country and cohort as well as change over time. Results show that, although men exhibit a general trend toward earlier net labor force exit, labor force participation rates at older ages remain high. Older women are found to be increasingly engaged in economic activity, especially in Singapore and Taiwan.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/42981/1/10823_2004_Article_233497.pd

Parasites and Raven Mothers: A German-Japanese Comparison on (Lone) Motherhood

Having a child out of wedlock used to be associated with shame and scorn. This is mostly not the case anymore in the western world. Therefore, freed from social sanctions, single motherhood has become an additional family-choice alternative for women, along with marriage and childlessness. Yet, the institutions that influence women's decisions differ across countries. We compare the institutional frame, in particular labor-market characteristics and family law, in Germany and Japan and, in addition, the interaction between culture and institutions. Both countries had a very traditional (one-earner) family system until the second half of the 20th century. Now we can observe that social changes that happened in Germany decades ago are happening only now in Japan. We analyze if and how the consequences in terms of family structures and fertility rates that resulted in Germany can be transfered to Japan.Dieser Artikel vergleicht die institutionellen Rahmenbedingungen in Deutschland und Japan, die die Fertilitätsentscheidung von Frauen beeinflussen können. Wir richten unser Augenmerk speziell auf Familienrecht, Arbeitsmarktcharakteristika und die Interaktion zwischen Institutionen und kulturellen Faktoren. Daraus leiten wir Implikationen für die relative Attraktivität von Ehe und Mutterschaft in beiden Ländern ab. Wir stellen fest, dass soziale Veränderungen, die in Deutschland vor einigen Jahrzenten vor sich gingen - insbesondere die Aufweichung der traditionellen Alleinverdiener-Familie - in Japan derzeit passieren. Wir analysieren, ob sich die Konsequenzen für Familienstruktur und Geburtenrate von Deutschland auf Japan übertragen lassen

Relative sea-level rise around East Antarctica during Oligocene glaciation

During the middle and late Eocene (∼48-34 Myr ago), the Earth's climate cooled and an ice sheet built up on Antarctica. The stepwise expansion of ice on Antarcticainduced crustal deformation and gravitational perturbations around the continent. Close to the ice sheet, sea level rosedespite an overall reduction in the mass of the ocean caused by the transfer of water to the ice sheet. Here we identify the crustal response to ice-sheet growth by forcing a glacial-hydro isostatic adjustment model with an Antarctic ice-sheet model. We find that the shelf areas around East Antarctica first shoaled as upper mantle material upwelled and a peripheral forebulge developed. The inner shelf subsequently subsided as lithosphere flexure extended outwards from the ice-sheet margins. Consequently the coasts experienced a progressive relative sea-level rise. Our analysis of sediment cores from the vicinity of the Antarctic ice sheet are in agreement with the spatial patterns of relative sea-level change indicated by our simulations. Our results are consistent with the suggestion that near-field processes such as local sea-level change influence the equilibrium state obtained by an icesheet grounding line

Earth: Atmospheric Evolution of a Habitable Planet

Our present-day atmosphere is often used as an analog for potentially habitable exoplanets, but Earth's atmosphere has changed dramatically throughout its 4.5 billion year history. For example, molecular oxygen is abundant in the atmosphere today but was absent on the early Earth. Meanwhile, the physical and chemical evolution of Earth's atmosphere has also resulted in major swings in surface temperature, at times resulting in extreme glaciation or warm greenhouse climates. Despite this dynamic and occasionally dramatic history, the Earth has been persistently habitable--and, in fact, inhabited--for roughly 4 billion years. Understanding Earth's momentous changes and its enduring habitability is essential as a guide to the diversity of habitable planetary environments that may exist beyond our solar system and for ultimately recognizing spectroscopic fingerprints of life elsewhere in the Universe. Here, we review long-term trends in the composition of Earth's atmosphere as it relates to both planetary habitability and inhabitation. We focus on gases that may serve as habitability markers (CO2, N2) or biosignatures (CH4, O2), especially as related to the redox evolution of the atmosphere and the coupled evolution of Earth's climate system. We emphasize that in the search for Earth-like planets we must be mindful that the example provided by the modern atmosphere merely represents a single snapshot of Earth's long-term evolution. In exploring the many former states of our own planet, we emphasize Earth's atmospheric evolution during the Archean, Proterozoic, and Phanerozoic eons, but we conclude with a brief discussion of potential atmospheric trajectories into the distant future, many millions to billions of years from now. All of these 'Alternative Earth' scenarios provide insight to the potential diversity of Earth-like, habitable, and inhabited worlds.Comment: 34 pages, 4 figures, 4 tables. Review chapter to appear in Handbook of Exoplanet

Living alone in Japan: Relationships with happiness and health

<b>Background</b>: One-person households are the most common type of household in Japan, but relatively little is known about the causes and potential consequences of the rise in solo living in young adulthood. <b>Objective</b>: I address two questions: What accounts for the rise in one-person households in young adulthood? How is solo living in young adulthood related to well-being? <b>Methods</b>: I use census data to evaluate how much of the growth in one-person households at ages 20−39 between 1985 and 2010 is explained by change in marital behavior and how much is explained by other factors. I then use data from the 2000−2010 rounds of the Japanese General Social Survey to examine whether and why men and women living alone differ from those living with others in terms of happiness and self-rated health. <b>Results</b>: Results of the first set of analyses indicate that changes in marital behavior explain all of the increase in one-person households for men and three-fourths of the increase for women. Results of the second set of analyses indicate that those living alone are significantly less happy than those living with others, whereas the two groups do not differ with respect to self-rated health. The observed differences in happiness are not explained by differences in subjective economic well-being or social integration. <b>Conclusions</b>: The relatively small magnitude of estimated differences in happiness and health provides little evidence to suggest that the projected rise in one-person households is likely to play a significant role in contributing to lower levels of well-being among young adults in Japan