Jane Jacobs' ‘Cities First’ Model and Archaeological Reality

In The Economy of Cities, Jane Jacobs conjectured that the world's first cities preceded the origins of agriculture, a proposition that was most recently revived by Peter Taylor in the pages of this journal. Jacobs' idea was out of line with extant archaeological findings when first advanced decades ago, and it remains firmly contradicted by a much fuller corpus of data today. After a review of how and why Jacobs formulated her ‘cities first’ model, we review current archaeological knowledge from the Near East, China and Mesoamerica to document the temporal precedence of agriculture before urbanism in each of these regions. Contrary to the opinions of Jacobs and Taylor, archaeological data are in fact sufficiently robust to reconstruct patterns of diet, settlement and social organization in the past, and to assign dates to the relevant sites. Our response illustrates how generations of archaeological discoveries have yielded solid empirical foundations for the evaluation of wider social scientific debates.     

The Global MRIO Lab – charting the world economy

ABSTRACT

We describe the creation of the Global Multi-Region Input–Output (MRIO) Lab, which is a cloud-computing platform offering a collaborative research environment through which participants can use each other’s resources to assemble their own individual MRIO versions. The Global MRIO Lab’s main purpose is to harness and focus previously disparate resources aimed at compiling large-scale MRIO databases that provide comprehensive representations of interregional trade, economic structure, industrial interdependence, as well as environmental and social impact. Based on the operational Australian Industrial Ecology Lab, a particularly important feature of this cloud environment is a highly detailed regional and sectoral taxonomy called the ‘root classification’. The purpose of this root is to serve as a feedstock from which researchers can choose any combination of regions and economic sectors to form a model of the economy that is suitable to address their particular research questions. Thus, the Global MRIO Lab concept enables enhanced flexibility in MRIO database construction whilst at the same time saving resources and avoiding duplication, by sharing time- and labour-intensive tasks amongst multiple research teams. We explain the concept, architecture, development and preliminary results of the Global MRIO Lab, and discuss its ability to continuously deliver some of the most prominent world MRIO databases.     

Effects of prior voluntary disclosure on earnings announcements in an environment with low information and regulation

This study examines the association between levels of annual report voluntary disclosure and the market reaction to the next interim earnings announcement in a market with both low regulation and analyst following. We examine the first order effects of voluntary disclosure by using direct measures for both the level of voluntary disclosure, and the market effects of such disclosure. The results show that preannouncement voluntary disclosure significantly reduces the price and volume reactions in the earnings announcement period, and is consistent with the Kim and Verrecchia (1991a) framework and the Atiase and Bamber (1994) empirical findings. We extend the analysis to investigate trading behavior during the earnings announcement period, and observe the trading behavior predicted by Kim and Verrecchia (1991b, 1994). We conclude that voluntary disclosure in annual reports can be regarded as an important determinant of preannouncement information precision in markets with low regulation and analyst following, and observe the expected trading behavior as modeled in Kim and Verrecchia (1991a), and extended in Kim and Verrecchia (1991b, 1994).     

An application of the DEA double bootstrap to examine sources of efficiency in Bangladesh rice farming

In this article we examine sources of technical efficiency for rice farming in Bangladesh. The motivation for the analysis is the need to close the rice yield gap to enable food security. We employ the DEA double bootstrap of Simar and Wilson (2007) to estimate and explain technical efficiency. This technique overcomes severe limitations inherent in using the two-stage DEA approach commonly employed in the efficiency literature. From a policy perspective our results show that potential efficiency gains to reduce the yield gap are greater than previously found. Statistically positive influences on technical efficiency are education, extension and credit, with age being a negative influence.     

The influence of values and attitudes on green consumer behavior: A conceptual model of green hotel patronage

This study develops a comprehensive conceptual framework of consumer behavioral intentions in green hotels. Based on Schwartz’s values theory, using Stern’s nomenclature, in conjugation with value-attitude-hierarchy, ecocentric and anthropocentric ethic, and green signaling theory, this study identifies values (biospheric, altruistic, and egoistic) and attitudes (ecocentric and anthropocentric) that influence consumers’ green hotel visit intention, willingness to pay more, and willingness to sacrifice. This study adds to the extant literature by incorporating the consumers’ environmental concern perspective, the social-altruistic perspective, and the personal benefits and status perspectives in embracing green products. Understanding the interplay of biospheric, altruistic, and egoistic values and ecocentric and anthropocentric attitudes on green hotel behavioral intentions will provide insights to better understand the green consumer and to better manage the green hotel.     

走正途,也走“邪道”

一项成功的创新战略需要在公司的正式和非正式组织间建立一种有意识的平衡关系。企业内这两种组织的平衡既有助于避免对平庸创意的处理不当,也能促进更多优秀创意的产生,并对其实施有效的评估、预测和后续支持。     

Computerization and immigration: Theory and evidence from the United States

Recent technological changes have been characterized as “routine-substituting” because they reduce demand for routine tasks and increase demand for analytical and service tasks. Little is known about how these changes have impacted immigration, or task specialization between immigrants and native-born individuals. In this paper, we show that such technological progress has attracted immigrants who increasingly specialize in manual-service occupations. We also suggest that openness to immigration attenuated the job and wage polarization faced by native-born from technological changes. We explain these facts with a model of technological progress and endogenous immigration. Simulations show that unskilled immigration attenuates the drop in routine employment proceeding from technological change, enhances skill upgrading for native-born and raises economy-wide productivity and welfare.     

Transforming the colonial legacy: The future of the Pakistani University

The universities of Pakistan were established by the colonial British government in 1858 so as to produce educated Indians to serve in the expanding bureaucracy. As government and security were the major concerns of the colonial government they made the bureaucracy (ICS) and the military prestigious and efficient institutions while higher education remained subordinate, government-controlled and poor. Being unattractive, the universities could not attract the most competent students and remained medieval teaching institutions with almost no research. This continues in Pakistan because the ruling elites of Pakistan continue to govern the country in the colonial tradition of the past. In the last section certain changes are suggested to make the universities more academically competent.