An aspect of the question of continuity between antiquity and middle ages: the origin of the Flemish cities between the North Sea and the Scheldt

Most historians of the Flemish cities have argued that there was no significant Roman habitation north of the civitates of Belgica secunda. Urban development in Flanders was thus seen essentially as a creation of the Carolingian period and after. But recent archaeological excavations have shown a substantial Roman presence at six cites which later were towns of medium or considerable importance. Although the buildings were evidently abandoned in the fifth century, settlement and political and ecclesiastical organization developed around them in the Merovingian age. The Roman background thus had a considerable effect on the development of town life in medieval Flanders.     

METROPOLITAN AGGLOMERATION AND SECTORAL AGGREGATION*

ABSTRACT. This paper proposes a procedure with which sectoral production functions can be aggregated to metropolitan production functions in the presence of external economies of scale. The procedure specifies the production functions as part of general equilibrium models. Consistency of a one-sector and a two-sector general equilibrium model is defined in terms of equality of the distribution of a nation's population over its metropolitan areas in autarky.     

The effects of setting up a National Family Planning Program in local communities on women's contraceptive experiences and fertility in rural Thailand

It is widely documented that Thailand's National Family Planning Program (NFPP) has been successful in increasing contraceptive prevalence and reducing fertility. In this paper, we investigate to what extent setting up the NFPP between the mid 1960s and the early 1990s in local communities per se has added to this success. For this, we use data from the 1992/93 Survey on the Status of Women and Fertility in Thailand (SWAFT). We find that presence of the NFPP in a community is associated with less than two percentage points higher proportion of women with contraceptive experience at ages 15–19, to about six percentage points higher proportion at ages 35–39, and with about a 3 per cent lower completed fertility. Although these associations are relatively small, they are significant and may suggest that setting up the NFPP in local communities per se has been important for a small group of hard-to-reach women with unmet contraceptive needs.     

Reconstructing age distribution,season of capture and growth rate of fish from archaeological sites based on otoliths and vertebrae

The growth increments of otoliths and vertebrae of plaice (Pleuronectes platessa) derived from a 15th century single depositional event at Raversijde (Belgium) are analysed with the aim of reconstructing (a) the age distribution of the population, (b) the season of capture, and (c) the growth rate. Otoliths and vertebrae give slightly different age distributions but it is possible to arrive at similar seasonality estimations in both structures when information from the literature and our own data from monthly captures of plaice from the North Sea are taken into account. These modern data show that the timing of annulus formation in otoliths and vertebrae is more or less similar. Back‐calculations on vertebrae and otoliths yield similar growth curves. The age distribution, the edge condition of both vertebrae and otoliths, and the growth rate obtained on the material from Raversijde all show that the plaice from the studied assemblage were captured during spring in the southern part of the North Sea. Vertebrae are commonly preserved in archaeological sites whereas otoliths rarely survive. Although they are more difficult to read than otoliths, vertebrae of plaice can be used for growth increment analyses, and the growth rates obtained from vertebrae from archaeological sites can, therefore, be compared in the future to growth data from modern otoliths studied in sea fisheries research. Archaeozoological material predating industrialized fishing since the 19th century can hence serve as a reference in the study of the compensatory response of commercially important species to heavy exploitation. Copyright © 1999 John Wiley & Sons, Ltd.