Makaynûn and its territory: the formation of an urban centre during the South Arabian period in the Hadramawt

Work at the site of Makaynûn in eastern Hadramawt (Yemen) and surrounding territory has yielded information on ancient settlement patterns in southern Arabia. This small regional centre lay within an area marked out by a network of seasonal flood‐water cultivation systems that irrigated agricultural areas. Each system was associated with one or more villages that were contemporary with the central site. As well as providing a communal refuge, the central site contained religious buildings, dwellings and doubtless the residence of the local elite, within the shelter of a defensive enclosure. This territory was overlain by a symbolic geography defined by the location of the sanctuaries and cemeteries of the Makaynûn community. This model of settlement was repeated all along the valley, where comparable systems were found at the mouths of the main tributary valleys.     

Exploit or Protect Airport Regions from Urbanization? Assessment of Land-use Restrictions in Amsterdam-Schiphol

Airports are no longer only places for take-off and landing, but increasingly became economic nodes in the urban development of metropolitan areas. Though it is debatable to what extent aviation growth is a cause or effect of economic growth, the reciprocal relationship cannot be denied. Most past developments near airports have been spontaneous and haphazard, but recently regional planners have increasingly included an airport focus. Airport planning aims to find a balance between exploitation of the economic potential and protecting the airport area from congestion and urbanization. This article examines the effects of land-use restriction policies near Amsterdam Airport Schiphol. Within the Schiphol area, only airport-related companies are allowed to establish their business near the airport. These policies have been implemented since 1987, but their success or failure was never evaluated in depth. For the first time empirical results show that land-use restriction policies could ban most of the undesired businesses near the airport. However, despite varieties of implementation and interpretation of the testing, few differences in effects are found. This study shows that airport-relatedness testing is a typically Dutch planning instrument, but can also be useful for other international airports.     

Economic integration and the diversification of regional exports: evidence from the Canadian-U.S. Free Trade Agreement

We investigate the impact of Canada–U.S. trade integrationon the degree of export diversification of the Canadian regions.Trade integration is captured through the decrease of trade-weightedtariffs that were boosted by implementation of the Canadian–U.S.Free Trade Agreement. We found strong evidence to support integration'slong-run impact on the patterns of absolute exports diversification.Significantly, this new finding remains robust to the exclusionof the primary sectors and to the potential presence of unitroot in the data. Our results lead us to support a positivelong-run relationship between trade integration and export diversification.     

Use of repeat house sales to measure changes since the early‐ or mid‐1980s in two inner‐city neighbourhoods in Windsor,Ontario

Changes in the prices of homes and the reasons for those changes may be more accurately predicted from repeat sales of the same homes after controlling for their changed attributes and differences in time between their sales and resales. This paper analyzes 346 of 583 sold houses in the Glengarry neighbourhood in Windsor, Ontario, that were sold more than once between 1981 and mid‐2017, and a corresponding 414 of 737 sold houses in the city's Wellington‐Crawford neighbourhood, sold more than once between 1986 and mid‐2017. After comparing types of resold homes with once‐sold ones, a repeat sales model predicts a first period of increasing annual percentage changes in resale prices compared to sale prices during the 1980s, followed by a second period of stagnation and possible decreases until 2011, and then increases during a third period after that. In addition, changes in resold homes’ attributes of the dwelling unit and neighbourhood are a second type of neighbourhood change in two inner‐city neighbourhoods during the past 30 or more years.     

The Landes de Gascogne (southwest France): periglacial desert and cultural frontier during the Palaeolithic

During the last glacial period, a large part of the Aquitaine basin (southwest France) was a periglacial desert comprising coversands with low-relief dune fields surrounded by loess accumulations. OSL and radiocarbon dates show that the phase of maximum sand deposition coincides with Marine Isotope Stage (MIS) 2. Peats and gleyic palaeosoils intercalated within the sands at some sites indicate that vegetation cover was able to develop locally during short events, possibly D–O interstadials, due to raised groundwater levels in interdunal depressions. Few Palaeolithic sites have been discovered in the coversand area in contrast to the peripheral loess region. Systematic survey along a future highway corridor demonstrates that this paucity of sites is not the result of insufficient survey nor deep site burial, but rather reflects an archaeological reality. This strongly suggests that the sand area was not attractive for hunter–gatherer populations due to its reduced levels of water resources, and available vegetation and animal biomass. The distribution of cultural markers such as art items and projectile points also shows that the coversand area probably acted as a barrier separating two different cultural sub-areas, one in the Pyrenees and Cantabria, the other in the Périgord. As a consequence, the commonly accepted view that southwest France, as a whole, served as a refugia during the cold and arid phases of the Pleistocene should be replaced by a more complex one that reflects the fact that a large part of the territory was almost unoccupied and that human populations were concentrated along alluvial valleys.