Ethnic group size,linguistic isolation,and immigrant entrepreneurship in the USA

Using a sample of immigrant men in US census data from the early and late 1900s and available in the Integrated Public Use Microdata Series (IPUMS), this study explores: (1) whether immigrant entrepreneurship is positively affected by ethnic group size and linguistic isolation; (2) how sensitive these relationships are to English-language proficiency; and (3) if these relationships have remained stable over time. The empirical results indicate that the size of the local ethnic population does not enhance immigrant self-employment for either English-proficient or limited-English-proficient (LEP) men in the USA. In addition, while linguistic isolation in the local labour pool seems to promote entrepreneurship among English-fluent immigrants in certain cases, it appears to hinder business formation among the LEP. Finally, comparing the results across time-periods is consistent with the premise that rising xenophobia pushes a disproportionate share of the LEP into self-employment.     

Part‐Time Work,Fixed‐Term Contracts,and the Returns to Experience

Using data from Spanish Social Security records, we investigate the returns to experience for female workers in different flexible work arrangements. Our model consists of four random‐effects equations simultaneously estimated using Markov Chain Monte Carlo techniques. We find a large negative wage effect of working part‐time (PT), which differs by motherhood status and contract type. We also find that working PT involves lower returns to experience than standard full‐time employment and thus a substantial negative wage effect accumulates over time for those employed PT. Finally, our simulations reveal that working PT also raises the probability of working under a fixed‐term contract.     

Explaining firms efficiency in the Ivorian manufacturing sector: a robust nonparametric approach

In this paper, we provide an analysis of C?te d’Ivoire firms performances and study the impact of qualitative external environmental factors on firm efficiencies. We adapt the one-step nonparametric robust methodology of Daraio and Simar 2005 to take in account qualitative environmental factors and we also compare the differences of behavior among two sub groups of firms characterized by different levels of technology. The sensitivity of our conclusions to environmental factors is analyzed using a bootstrapped test. We also check the robustness of our results upon time on two different years of observations.     

Innovator networks and regional knowledge base

Although network analysis has gained increasing attention over the last years, the literature on Regional Innovation Systems thus far has not embraced network methods. This study is an attempt to enrich the Regional Innovation System concept by applying social network methods to quantitatively assess the extent to which innovating actors in a region engage in systemic forms of knowledge exchange and collaboration. On the basis of a comparison of three rather different regional innovator networks, the paper suggests that regions with a strong knowledge base that are specialized in broad technology fields tend to have relatively fragmented network structures.     

Reconnecting Australian consumers and producers: Identifying problems of distrust

A growing gap between the production and consumption of food has led to a decline in consumer trust in food, and a desire for increased regulation of food. The aim of this study was to investigate the nature of consumer trust in food production and regulation in the wake of shifts in food technology, globalisation and production. Semi-structured interviews (n = 47) were conducted in 2009 with participants living in rural and metropolitan South Australia. Rural participants were more trusting of food production because of their direct experience with producing food than their metropolitan counterparts. Consumers’ embeddedness in food production impacts their trust in food. Increasing local food production and consumption may increase consumer trust in food, and decrease consumer dependence on government regulation.     

Exploring the post-termination stage of consumer–brand relationships: An empirical investigation of the premium car market

This research extends customer lifecycle models to include a post-termination stage that bridges the dissolution stage of a consumer–brand relationship with a potential recovery stage. Drawing from 43 depth interviews with former customers of a car brand, this study relies on grounded theory and triangulation to explore consumer responses in the post-termination stage and finds evidence for both negative and positive customer responses after dissolution. The authors combine qualitative techniques with categorical principal component analysis (CATPCA) to explore the dimensionality of post-termination responses and extract relationship-related and termination-related response dimensions. They use these dimensions to identify four distinct post-termination customer clusters, which differ systematically with the customer's termination reasons, as demonstrated through a series of exact logistic regressions. In addition to providing evidence of a post-termination stage, this study offers implications for customer relationship management.     

Does Travel Time to Stores Matter? The Role of Merchandise Availability

Retailers generally attract consumers to further locations by offering discounted merchandise. We suggest an alternative strategy is to increase the availability (or certainty) of finding the merchandise at their store (i.e., reduce stock-outs). We conduct three experiments to highlight that consumers view travel time more adversely when there is uncertainty about merchandise availability. We also demonstrate that the negative effects associated with uncertainty around merchandise availability and travel time can be mitigated through the use of in-stock guarantees.     

Provider Competition in a Dynamic Setting

We examine provider and patient behavior in a dynamic model where effort is noncontractible, competition between providers is modeled in an explicit way and where patients' outside options are solved for in equilibrium. Physicians are characterized by an individual-specific ethical constraint which allows for unobserved heterogeneity. This introduces uncertainty in the patient's expected treatment if he were to leave his current physician to seek care elsewhere. We also introduce switching costs and uncertainty in the treatment–outcome relationship. Our model generates equilibria with treatment heterogeneity, unstable physician–patient relationships, and overtreatment (a form of defensive medicine).