Dowels as a Means of Edge-to-Edge Joinery in the 9th-century AD Vessel from Bozburun, Turkey

After the excavation of the 9th-century AD merchantman from Bozburun, Turkey, from 1995 to 1998, examination of the preserved hull material revealed a method of using dowels embedded in the plank edge to join hull planking together. This method has not previously been recorded in the early medieval Mediterranean. The article discusses the characteristics of the joints in the hull planking of the Bozburun vessel, and considers its role in the transition from the shell-first to frame-first methods of assembly.
© 2005 The Nautical Archaeology Society     

网络负面口碑对旅游目的地品牌资产稀释效应——熟悉度和易感性的调节作用

文章以云南丽江为旅游目的地,通过准实验法检验网络负面口碑对目的地品牌资产的稀释效应,并探讨这一稀释效应是否受到熟悉度和易感性的调节。结果表明:网络负面口碑对目的地品牌资产存在稀释效应;即使是对目的地高熟悉度的消费者而言,这种稀释效应也是存在的,而且研究还发现熟悉度越高,品牌资产的稀释效应越强;就对目的地网络口碑的易感性而言,网络负面口碑对目的地品牌资产的稀释效应是相对稳定的;就目的地品牌资产各个维度比较而言,网络负面口碑对品牌忠诚的影响最大,对品牌形象和感知质量的影响次之,对品牌意识的影响最小。     

康熙瓷胎画珐琅款式与“年款的激励效应”

分析了康熙的瓷胎画珐琅款式,首次提出了“年款的激励效应”这一命题,这是理解我国明清御窑本质意义的一个崭新角度。     

On the origins of border effects: insights from the Habsburg Empire

What are the origins of border effects on trade and why do borderscontinue to matter in periods of increasing economic integration?We explore the hypothesis that border effects emerged as a resultof asymmetric economic integration in the unique historicalsetting of the multi-national Habsburg Empire prior to the FirstWorld War. While markets tended to integrate mainly due to improvedinfrastructure, ethno-linguistic networks had persistent tradediverting effects. We find that the political borders whichseparated the empire's successor states after the First WorldWar became visible in the economy from the mid-1880s onwards,already 25–30 years before the First World War. This effectof a ‘border before a border’ cannot be explainedby factors such as administrative barriers, physical geography,changes in infrastructure or patterns of integration with neighbouringregions outside of the Habsburg customs and monetary union.However, controlling for the changing ethno-linguistic compositionof the population across the regional capital cities of theempire does explain most of the estimated border effects.     

沉没成本、制度环境与企业出口地理动态

本文使用2002-2011年中国海关出口数据,探究成本视角下企业出口地理动态和作用机制。实证结果表明企业出口活动和邻近企业溢出均对企业在出口市场上的进入和退出存在显著双面性影响：企业出口活动不利于企业进入新市场,但利于企业继续留在国外已有市场中;邻近企业溢出为企业进入新市场创造了有利条件,但加快了企业从已有市场退出。本文还发现在市场化程度较低和政府干预程度较高的地区,企业出口活动和邻近企业溢出发挥的“双面性”影响明显。这意味地方制度环境能影响中国企业出口地理动态,塑造了企业出口的动机和策略。     

Geographic information system‐based edge effect correction for Ripley's K‐function under irregular boundaries

Ripley's K‐function is a test to detect geographically distributed patterns occurring across spatial scales. Initially, it assumed infinitely continuous planar space, but in reality, any geographic distribution occurs in a bounded region. Hence, the edge problem must be solved in the application of Ripley's K‐function. Traditionally, three basic edge correction methods were designed for regular study plots because of simplified geometric computation: the Ripley circumference, buffer zone, and toroidal methods. For an irregular‐shaped study region, a geographic information system (GIS) is needed to support geometric calculation of complex shapes. The Ripley circumference method was originally implemented by Haase and has been modified into a Python program in a GIS environment via Monte Carlo simulation (hereafter, the Ripley–Haase and Ripley–GIS methods). The results show that in terms of the statistical powers of clustering detection for irregular boundaries, the Ripley–GIS method is the most stable, followed by the buffer zone, toroidal, and Ripley–Haase methods. After edge effects of irregular boundaries have been eliminated, Ripley's K‐function is used to estimate the degree of spatial clustering of cities in a given territory, and in this paper, we demonstrate that by reference to the relationship between urban spatial structure and economic growth in China.     

The external effects of inner-city shopping centers: Evidence from the Netherlands

Shopping center redevelopment is inevitable to remain attractive for consumers. In this paper, we investigate the external effects of shopping center redevelopment on nearby residential property prices. Using a difference-in-difference empirical framework, we find the redevelopment has positive external effects on nearby property prices. We find the price of a property located next to a redeveloped shopping center increases by 1.43% on average just after redevelopment. Our results indicate that these positive external effects wear off rather rapidly across space and over time. This suggests that shopping center redevelopment plays a substantial, but limited, role in combating neighborhood deprivation.     

Spillover effects in spatial models: Generalizations and extensions

In this paper, we consider two different cases of spillover effects: the first is a case where the model does not contain any additional endogenous regressors. Related to this, we give a variance formula that can be used to make inference for estimated spillover effects. In the second case, we extend the discussion of spillover effects to a model containing additional endogenous variables. We suggest approximations to the spillover effects that according to the results of our Monte Carlo experiment are quite accurate. However, our variance formula can not be determined unless the equations of the entire system are known. Suggestions for approximations in this case are left for future research.     

“Imagine the streets”: The spatial dimension of protests' transformative effects and its role in building movement identity

The recent wave of occupations highlighted how closely space and social movements are related. While this revived scholarly interest in the role of space during protests, little attention so far has been paid to the role of space in protests' long-term internal effects. Bringing together the literatures on transformative effects and space in social movements, the paper examines the role of protests' spatiality in their transformative effects, drawing on a narrow approach to space. The analysis focuses in particular on effects on collective identity building in social movements. Based on interviews and focus groups with activists in 2011, the paper examines the long-term effects of an incisive protest event of the Global Justice Movement (GJM) in Europe, the protests against the G8 summit in Genoa in 2001. The paper shows that this event's spatiality plays a crucial role in building movement identity several years later: it provides activists with interpretational devices to delineate the GJM's internal and external boundaries. The paper thus underlines that research on transformative effects can considerably profit from considering spatiality.