Core and equilibria in coalitional asymmetric information economies

We study coalitional economies under uncertainty and asymmetric information, assuming a finitely additive measure space of agents and finitely many possible states of nature. We introduce a suitable core notion showing that it is equivalent to Walrasian expectations equilibria. The finitely additive approach proposed in the paper permits also asymmetric information economy with countably many agents, rather than requiring only a continuum. Moreover, it allows us to overcome well-known criticisms related to the interpretation of individual private core notions.     

Network planning of fuelling service stations in a near-term competitive scenario of the hydrogen economy

Hydrogen can be viewed as the flexible automotive fuel of the future. However, many issues related to its use have not been sufficiently investigated. One such issue concerns hydrogen logistics and distribution throughout a territory. One near-term scenario over the next decade is likely to include distribution procedures that are similar to those currently used for petrol products. In this scenario, the conversion of petrol service stations into hydrogen distribution points will progressively be implemented. Petrol companies will then represent one of the major categories of hydrogen producers. They will thus have to select, from a cost/benefit standpoint that accounts for competing companies expected to offer the same service throughout a territory, the most convenient and effective locations for hydrogen distribution. The current paper presents a model for planning a network of service stations of a given company within a competitive framework. A case study of a specific territory in northern Italy is presented and discussed.     

Actors' Heterogeneity in Innovation Networks

Several interpretations converge in defining innovation networks as formed by heterogeneous actors, mainly identified in universities, research centers, and business companies. While the issue of actors' heterogeneity has generated active debate in strategy and organization studies, there has been little discussion so far in exploring the role of this diversity in innovation networks.Drawn from previous literature, we identify six attributes of actors' heterogeneity which seem to matter for the development of collaborative innovation: goals, knowledge bases, capabilities and competences, perceptions, power and position, culture. This paper is aimed at pursuing issues in need of further investigation. In particular 1. how the interplay of diverse actors' attributes shapes the interaction process in the development of collaborative innovation; 2. if and how combinations of their attributes are more likely to generate certain consequences in interaction; and 3. the degree to which heterogeneity is preferable to homogeneity for the effectiveness of innovation networks. In a recursive relationship, we also call for more research on the mechanisms that lead actors' attributes to change as an effect of interaction as well as on the interaction capabilities actors apply to manage heterogeneity.     

Do micro start-ups fuel job creation? Cross-country evidence from the DynEmp Express database

Exploiting a novel database recently built from national business registers by the OECD with the support of an international network of experts, this paper investigates the growth dynamics of micro-firms (employing less than ten workers) across 16 countries. Results show that only a small proportion of micro-firms manage to grow beyond ten employees, but those contribute disproportionately to overall job creation. Econometric analysis focusing in particular on the role of age confirms that young micro-firms—especially those below 3 years of age—are much more likely to grow above ten employees than older firms. These findings are remarkably stable over the three time periods considered (2001–2004, 2004–2007, and 2007–2010), i.e., also during the Great Recession.     

Workforce Composition and Innovation: How Diversity in Employees’ Ethnic and Educational Backgrounds Facilitates Firm‐Level Innovativeness

This article studies how workforce composition is related to a firm's success in introducing radical innovations. Previous studies have argued that teams composed of individuals with diverse backgrounds are able to perform more information processing and make deeper use of the information, which is important to accomplish complex tasks. We suggest that this argument can be extended to the level of the aggregate workforce of high‐technology firms. In particular, we argue that ethnic and higher education diversity within the workforce is associated with superior performance in radical innovation. Using a sample of 3,888 Swedish firms, this article demonstrates that having greater workforce diversity in terms of both ethnic background and educational disciplinary background is positively correlated to the share of a firm's turnover generated by radical innovation. Having more external collaborations does, however, seem to reduce the importance of educational background diversity. The impact of ethnic diversity is not affected by external collaboration. These findings hold after using alternative measures of dependent and independent variables, alternative sample sizes, and alternative estimation techniques. The research findings presented in this article would seem to have immediate and important practical implications. They would suggest that companies may pursue recruitment policies inspired by greater ethnic and disciplinary diversity as a way to boost the innovativeness of the organization. From a managerial perspective, it may be concluded that workforce disciplinary diversity could be potentially replaced by more external links, while ethnic diversity could not.     

An empirical study of consumer behavior related to private labels and national brand promotions

One day while in the store, Bernard grabs his usual Dominick's cream cheese off the shelf. I notice and point out that the national brand of Philadelphia cream cheese is on sale and less expensive. Bernard looks at the two products and actually hesitates for a while to switch to the national brand. His hesitation makes it clear that his preference is not based solely on price. (Chang Coupland 2005, 115).     

The invention of shopping tourism. The discursive repositioning of landscape in an Italian retail-led case

Under the label of ‘shopping tour’, tour operators currently offer package tours which aim to highlight for the visitor the commercial appeal of a particular location. A variety of destinations are suitable for tours with such a label. In this context, certain ‘shopping tourism’ destinations simply consist of areas where the concentration of corporation-led retail venues is high. The Novese Area, in the northwest of Italy, has been transforming into such a destination since the opening of the Serravalle Designer Outlet, an outlet ‘village’ which opened in 2000. This paper reports on original research aimed at enquiring about shifts in the representation of the landscape of this area as it is shown in the discourses of local political and business actors. It is argued that this case study portrays a rather unique case of late western urban regeneration practice through which a formal industrial area is turned into a consumption site suitable for tourism. Here, the repositioning process not only influences local planning policies, but feeds – and is fed by – a simultaneous process of consumption normalization.     

Firms’ exporting and importing activities: is there a two-way relationship?

The literature on firm heterogeneity and trade has highlighted that most trading firms tend to engage in both importing and exporting activities. This paper provides some evidence that helps understanding to what extent this is the result of a two-way relationship. Using firm-level data for a group of 27 Eastern European and Central Asian countries from the World Bank Business Environment and Enterprise Performance Survey (BEEPS) over the period 2002–2008, we estimate a bivariate probit model of exporting and importing. After controlling for size (and other firm-level characteristics) we find that firms’ exporting activity does not increase the probability of importing, while the latter has a positive effect on foreign sales. This effect is mainly channeled through an increase in firm productivity and product innovation.     

Export and import market-specific characteristics

Using a rich firm-level dataset on the Italian manufacturing industry, this paper provides a comprehensive analysis of the role that firms and market characteristics play in shaping firms’ trade activities. We enhance the previous analyses by considering firms’ engagement in international transactions, by focusing on either exports or imports. We show that the determinants of a firm’s export participation and value across countries also drive import behavior. Our research is consistent with the presence of country-specific sunk costs and with a qualitatively similar role of gravity forces and other country attributes on both sides of trading activities. Our evidence, however, militates in favor of a framework where variations in market characteristics have a larger impact on imports than exports.     

Personality and cognitive skills in network of friends,for multi-ethnic schools

In a multi-ethnic society, friendship among children might be expected to be overwhelmingly shaped by ethnicity and cultural heritage. Using an original panel data-set of classmate networks in multi-ethnic primary schools near Florence, Italy, ($N=396$ children in 2nd and 5th grade), we show instead that cognitive skills and personality traits matter as much as ethnicity in shaping friendships, thus playing the role of elective affinities. We test whether friends affect a child’s personality more than the other way round: to do this, we estimate peer effects. We only find non-significant effect of peers on math grades and a measure of intelligence (KBIT). For personality traits, peer effects are significant only for Extraversion. These findings are crucial for design of immigration policies: rather than emphasizing differences among ethnic groups, a farsighted policy could try to point these elective affinities among individuals.