巴马盘阳河流域季节性移民社区类型与形成机理

季节性移民聚居现象受到西方学术界的极大关注,而我国鲜有研究。采用观察法和访谈法,对巴马盘阳河流域"一地多类"的季节性移民社区的形成过程、类型特征与作用机理进行归纳与揭示。研究表明：①季节性移民社区演变历经萌芽、快速参与和转型发展三个阶段,社区人口结构、聚居空间、经济业态、景观设施及人文氛围在不同时期呈现出不同的特征;②季节性移民社区形态存在差异,可以归类为交融性社区、优势性社区,共享性社区,纯粹性社区。③季节性移民社区是差异化的"美好生活"需求、独特的长寿资源及乡村生活环境、外来商业资本、地方政府调控和利益共生等"五力驱动"的结果,不同发展阶段其主导动力和作用方式存在差异。     

Studying Immigrant Policy One Law at a Time

This article shows that, in the study of immigrant integration policy in the U.S. states, it is critical to report data and coding decisions for individual laws. This analysis uses an updated and public database of law‐level decisions, which includes 2,703 legislative actions recorded by the National Conference of State Legislatures from 2005 to 2016. These data are used to estimate models of aggregate state policy activity in a variety of ways: as a single continuum of policy balance versus separate models of welcoming and hostile, lumping all policy subareas together versus analyzing a specific subarea, and lumping all years together in one cross section versus panel analysis. The results in these models differ enough to indicate that reporting codes for individual‐level laws is absolutely essential so that each researcher easily can construct the measure that fits his or her theoretical framework best.     

One Model Does Not Fit All: The Varied Politics of State Immigrant Policies, 2005–16

This article addresses conceptual and measurement challenges that complicate the study of state immigrant policies. First, given the multiple facets of immigrant‐related policy, policy‐specific effects may be obscured by highly aggregated outcomes variables. Second, variables of interest often capture both time‐varying and time‐invariant effects, potentially producing coefficients that are uninterpretable averages of both processes. This article presents a research design that addresses both of these obstacles and applies it to an original dataset of both integrative and punitive policies adopted over the period 2005–16. The findings suggest that the causal roles of growing immigrant populations, partisanship, and wealth vary across different clusters of immigrant policies and that average, cross‐state effects often differ from within‐state effects. Future research would do well to clearly link theoretical expectations to specific types of policy outcomes and test hypotheses over both integrative and restrictive outcomes.     

跨国场域下的企业家精神、国家与社会网络：中国新移民的个案分析

以在新加坡的中国新移民企业家为个案,简要地讨论企业家和企业家精神的内涵及其在全球化时代的展延;分析了新移民企业家跨国知识与技术优势在新兴企业成长中扮演关键作用;论述了跨国移民企业家产生与发展的不可或缺的外在因素以及由此形成的双赢策略;进而阐述跨国性的理论架构如何有助于解释华人企业家在当代世界和中国社会经济发展中的作用。     

Morphometric Variability of Roman Dogs in Hispania Tarraconensis: The Case Study of the Vila de Madrid Necropolis

The size, body conformation and skull shape of Roman dogs from the ‘Vila de Madrid necropolis’ site, where 1480 dog remains were recovered, are described in this paper to provide evidence of the morphometric variability of Roman dogs in Hispania Tarraconensis. The individualized and detailed morphometric analysis of 10 individuals shows that the proliferation and explosion of the morphological variability already documented in different regions of the Roman Empire (Italia, Gallia, Britannia, Pannonia) are also noted here. The presence of very different individuals in terms of their shape and size, similar to the differences that can at present be noted between Pekingese and Doberman dogs, has been documented at the site. The reasons for the appearance of this morphological variability within those territories that were part of the Roman Empire are also discussed. Copyright © 2015 John Wiley & Sons, Ltd.     

Immigrant entrepreneurs,diasporas, and exports

This paper demonstrates the positive effect of immigrant entrepreneurs on manufacturing exports over and above that of diasporas. Using small-scale regional administrative data, our instrumental variable estimates of export gravity models imply that ceteris paribus, that is, holding constant the total number of immigrants, the expected protrade effect of a migrant becoming an entrepreneur amounts to an average increase of US$5,946 in the export flows toward her country of origin. Besides these dyadic effects, immigrant entrepreneurs unlike nonentrepreneurial immigrants raise a region's overall competitiveness and export flows toward other destinations as well.     

Identifying Relevant Cases of Conversion and Drift Using the Comparative Agendas Project

One of the most important phases of case‐oriented research is identifying the relevant population of cases. The best practice scheme suggests first identifying the positive and then the negative cases, based on the assumption that the population is small and known. This scheme is inapplicable when the population is unknown, as is the case with many public administration and public policy outcomes, which are often less visible. However, most research either ignores this difficulty or recommends a single case study. This article suggests that when the population is unknown scholars can apply the possibility principle to identify the relevant population of cases. In order to do so, a large dataset is required. In policy studies, the Comparative Agendas Project (CAP) can serve this aim. This article highlights CAP's applicability for case selection based on the possibility principle in two less visible policy outcomes: conversion and drift. In that, it not only addresses an overlooked challenge but also promotes both CAP as a useful tool for qualitative researchers and the expansion of comparative work on conversion and drift.     

A method for estimating edge length from flake dimensions: use and implications for technological change in the southern African MSA

This paper presents a method for estimating edge length from flake dimensions. Comparison of estimated values with data from measured flake edges demonstrates the robusticity of the method. Building on the work of Braun (Braun, D.R., 2005. Examining flake production strategies: examples from the Middle Paleolithic of Southwest Asia. Lithic Technology 30, 107–125; Braun, D.R., Harris, J.W.K., 2003. Technological developments in the Oldowan of Koobi Fora: innovative techniques of artifact analysis and new interpretations of Oldowan behavior, in Mora, R., de la Torre, I. (Eds.), Oldowan: Rather More than Smashing Stones. Treballs d’ Arqueologia 9, pp. 132–144) this estimate is used to generate an edge length to mass value for complete flakes—taken to be a proxy for flaking efficiency. It is shown that this value is useful in tracking the onset, variability and decline of a well known technological phase—the Howiesons Poort of South Africa. The results suggest that the Howiesons Poort was a time in which flaking efficiency was emphasised. Furthermore, comparison of upper limits of edge to mass values for different raw materials may provide an insight into changes in raw material selection.     

旅沪外国游客旅游选择行为研究

旅游者行为研究是旅游市场拓展、旅游资源开发、旅游规划的基础。本文根据对上海入境外国人市场结构和游客行为的亲身抽样调查资料,运用旅游地理学基本原理、心理学分析和比较分析法等研究方法,重点探讨了不同国家的旅沪外国游客对旅游资源、旅游方式、旅游饮食、旅游住宿、旅游购物品和旅游娱乐项目的选择偏好和旅游行为规律。分析结果如下：旅沪外国游客偏好文化古迹、山水风光和民俗风情、饮食烹调等旅游资源;以散客形式旅游的游客多于团队旅游的游客;在饮食选择中,偏好富有中国风味特色的饮食产品;在旅游购物品选择中,偏好工艺品、服饰品、丝绸纺织品和艺术品;对娱乐项目的选择,偏好民俗文化类和探险类娱乐项目;在住宿选择方面,喜爱地理位置优越、价格合理、安全有保障和设施配套齐全的饭店。