Why do some combinations perform better than others?

The evidence from the literature on forecast combination shows that combinations generally perform well. We discuss here how the accuracy and diversity of the methods being combined and the robustness of the combination rule can influence performance, and illustrate this by showing that a simple, robust combination of a subset of the nine methods used in the M4 competition’s best combination performs almost as well as that forecast, and is easier to implement. We screened out methods with low accuracy or highly correlated errors and combined the remaining methods using a trimmed mean. We also investigated the accuracy risk (the risk of a bad forecast), proposing two new accuracy measures for this purpose. Our trimmed mean and the trimmed mean of all nine methods both had lower accuracy risk than either the best combination in the M4 competition or the simple mean of the nine methods.     

Are migrants in/from emerging economies more entrepreneurial than natives?

International Entrepreneurship and Management Journal - The academic debate in migrant entrepreneurship has mainly focused on movements from emerging economies into developed economies. Anecdotal...     

Why are some graduate entrepreneurs more innovative than others? The effect of human capital,psychological factor and entrepreneurial rewards on entrepreneurial innovativeness

This study investigates the innovation behaviour of graduate start-ups at the individual level. It bridges the graduate enterprise literature and innovative entrepreneurship literature to put forward three arguments that ascertain why highly educated graduate entrepreneurs are not always innovative in starting new businesses. First, anchoring on the individual opportunity costs–entrepreneurial rewards nexus, it argues that graduate entrepreneurs will exploit opportunities innovatively if they expect the levels of entrepreneurial rewards that match their high human capital and high opportunity costs. Second, it is argued that entrepreneurial innovativeness is conditional on psychological factors such as students’ managerial self-efficacy and overconfidence. Third, it is also argued that the nonlinear relationship between entrepreneurial innovativeness and entrepreneurial rewards will drive graduate entrepreneurs to exploit even riskier opportunities in search for high rewards. This study operationalizes the theoretical framework with an empirical model and estimates it using a graduate entrepreneur sample from a questionnaire survey in China. Our results suggest that innovation behaviour of graduate start-ups is influenced by the quantity of human capital, psychological make-up and expectations of entrepreneurial rewards.     

How do very open economies adjust to large immigration flows? Evidence from Spanish regions

We study the labor market effects of the large immigration wave in Spain between 2001 and 2006. In this period the foreign-born share increased from 6% to 13%, with a total inflow exceeding three million immigrants. Our analysis exploits the large variation in the size of immigration flows across Spain's regions. To identify causal effects, we take advantage of the fact that immigrants' location choices were strongly driven by early migrant settlements that arrived during the 1980s. We find that the relatively unskilled migration inflows did not affect the wages or employment rates of unskilled workers in the receiving regions. The growth of the unskilled labor force was absorbed mostly through increases in total employment. This increase did not originate in changes in the composition of regional output, but was instead driven by changes in skill intensity at the industry level. Regions that received a large inflow of unskilled immigrants increased the intensity of use of the now more abundant (unskilled) labor, relative to other regions. The key industries responsible for this absorption were retail, construction, hotels and restaurants and domestic services. These results are inconsistent with standard open economy models but are in line with recent empirical studies for the United States and Germany.     

How do crowd logistics platforms create value? An exploratory case study from China

ABSTRACT

Crowd logistics platforms play an important role in value creation, but the extant literature has not clarified how platforms create value. Consequently, this multiple case study identifies three main types of value creation capabilities for crowd logistics platforms: resource matching, operations management, and risk control. Additionally, the study demonstrates that these crowd logistics platform capabilities create value by providing the most accurate matches between resources and requests while also enhancing driver agility and compliance. Based on these findings, we present four propositions that extend our understanding of crowd logistics platforms’ value creation capabilities and the process through which these capabilities lead to value creation. The study also provides valuable insights for crowd logistics companies to improve their value creation capabilities.     

Why do entrepreneurs open tech startups? A comparative study between Brazilian and foreign enterprises

International Entrepreneurship and Management Journal - This research identifies and compares the reasons that lead entrepreneurs to open a startup in Brazil or abroad along six factors:...     

Why locate manufacturing in a high-cost country? A case study of 35 production location decisions

In this paper, we examine in detail 35 final assembly location decisions to gain understanding of the manufacturing location decision from strategy and economic policy perspectives. We are particularly interested in the decision to locate final assembly specifically in a high-cost (high GDP per capita) environment. In contrast with the earlier literature, we focus not just on manufacturing activities themselves, but also the key linkages between production, market, supply chain, and product development. These linkages are examined using three key concepts from theories of organization design: formalization, specificity, and coupling. Using these concepts, an analysis of the micro-structure of each case reveals important commonalities that inform our understanding of location decisions. We conclude by discussing the policy implications of our findings.     

Are case studies more than sophisticated storytelling?: Methodological problems of qualitative empirical research mainly based on semi-structured interviews

Qualitative empirical research and case studies have, like any other scientific method, their strengths and weaknesses. But how valid are the findings stemming from such research, particularly when they are base on data gained from interviews? This paper primarily deals with the methodological problems throughout the whole research process. Areas of concerns are: (1) before collecting data and during the whole research process, (2) the process of collecting data, (3) internal validity and making sense of data, (4) external validity of the data and findings, (5) relation between the findings and social sciences as well as social practice. The analysis will reveal a mixed picture concerning the scientific value of qualitative case studies. There is some good news. There is more methodological freedom and room for creativity in qualitative research than it seems at first glance. On the other hand there is a need for a greater methodological awareness particularly concerning possible downsides of subjectivity, the generalisation of the findings, conscious and unconscious biases, influences of dominant ideologies and mainstream thinking. Above all, there is a great need for rational critique. There is great need for a more critical attitude towards (basic) assumptions—particularly, to challenge, question and criticise literally everything systematically and permanently and to put the findings sufficiently in relation to the wider historical context, i.e. epochal ideologies and societal structures. Social science research has to contribute much more to the discussion of values, interests, and ideologies that shape current and future social practices.     

Does class matter more than school? Evidence from a multilevel statistical analysis on Italian junior secondary school students

This paper assesses the differences in educational attainments between students across classes and schools they are grouped by, in the context of Italian educational system. The purpose is to identify a relationship between pupils' reading test scores and students' characteristics, stratifying for classes, schools and geographical areas. The dataset contains detailed information about more than 500,000 students at the first year of junior secondary school in the year 2012/2013. By means of multilevel linear models, it is possible to estimate statistically significant school and class effects, after adjusting for pupil's characteristics, including prior achievement. The results show that school and class effects are very heterogeneous across macro-areas (Northern, Central and Southern Italy), and that there are substantial discrepancies between and within schools; overall, class effects on achievement tend to be larger than school ones.     

Explorers of the twenty-first century? A systematic literature review of the scholarship on international entrepreneurs from developed economies

Throughout history, expeditionists and explorers have discovered foreign countries and new worlds, markedly influencing the lives of succeeding generations. However, as multinational enterprises have come to drive globalisation, the existence of entrepreneurial individuals without the resources of large corporations is a relatively recent phenomenon. Although research on migrant entrepreneurs demonstrates the positive impact that foreign entrepreneurial activity can have on job creation and innovation, a clear perspective on entrepreneurs from developed economies venturing abroad is lacking. The study aggregates evidence from 33 articles to establish a unifying framework that describes the foreign entrepreneurial process originating in developed economies. The framework proposes categorising foreign entrepreneurial activity according to social and economic dimensions and introduces four archetypes of foreign entrepreneurs, helping us understand the dynamics of the institutional context and the motivations for venturing into foreign environments. Finally, the study discusses the implications for foreign entrepreneurs and considers future research avenues.

     

Are some sectors more “youth friendly” than others? Employment regimes,sectors, and gender disparities in the Great Recession

Despite national differences in youth employment, many countries share striking similarities in the uneven sectoral distribution of job opportunities for young women and men in Europe. A shift‐share analysis of European Labour Force data identifies “youth‐friendly” sectors, how this varies between countries, and how this changed during the Great Recession. This reveals how youth job opportunities were lost because the sector shrank or because employers were less likely to offer full‐time, permanent contracts. New jobs for youth were more likely to be in part‐time and temporary employment. Youth vulnerability to unemployment is contingent not only on employers' engagement with institutions shaping school‐to‐work transitions but also on gender segregation and to the fact that some sectors have been particularly fragile during the economic crisis. Future research needs to link institutional effects with employers' business strategies to understand how these shape job opportunities for young women and men.     

Between consultation and collective bargaining? The changing role of non‐union employee representatives: a case study from the finance sector

This article reviews the roles and activities of non‐union employee representatives (NERs) acting as forum officers in a large Internet finance company. Currently there is little academic coverage concerning NERs in this sector, including their contributions to employment relations, their motivations and orientations towards representative role and activities, or relations with management and fellow employees. An important precondition to answering one of the main questions asked of NERs is whether such representation constitutes the foundation of some nascent trade unionism, or whether by acting as forum representatives, they are positioning themselves to support management agendas and outlook? The range of data from this article's longitudinal case study, indicating time usage including individual and collective representation, suggests that NERs allegiances and roles remain ambiguous, existing as they do in the intersection between consultation and collective bargaining. An important factor may be their capacity for independent action and independence from senior management.     

Can supplier innovations substitute for internal R&D? A multiple case study from an absorptive capacity perspective

Prior literature suggests that significant internal R&D resources are needed to leverage suppliers for innovation and that external knowledge sources can be used to complement the internal knowledge base. Based on the analysis of four inbound open innovation projects at Fortum, a multinational energy utility company, we argue that companies with low R&D intensity may adopt an alternative approach which aims at substituting – not merely complementing – internal R&D with external innovations. We adopt the absorptive capacity perspective while investigating the cases and focus on four distinct capabilities: acquisition, assimilation, transformation, and exploitation. We find that the substitution approach consists of short-term research on new technological areas in order to gain the ability to identify and evaluate alternative technologies, as well as joint business models and operations based on complementary capabilities between the parties. The cases also suggest that the innovation process requires significant collaboration and the buying company's supplier management capabilities may improve the success of inbound open innovation projects of this type.     

What is Contagious? Exploring why content goes viral on Twitter: A case study of the ALS Ice Bucket Challenge

This study employs Berger's 2013 STEPPS (social currency, triggers, emotion, practical value, public, and stories) framework for assessing the messaging factors that influence eWOM in the nonprofit sector. Thus, the authors first operationalize the key principles for the nonprofit sector, then examine viral content (1,000 tweets and linked videos) to demonstrate the applicability of these principles for theory building and practice. Our content analysis reveals that some principles (e.g., social currency, triggers, high‐arousal emotion, or public) are more prevalent than other principles (e.g., practical value or story). This study also explores the relationships between the 6 principles and the level of online engagement, revealing interesting results about what people post initially versus what they pass along from others in their network.     

A study on the influence of eWOM using content analysis: how do comments on value for money,product sophistication and experiential feeling affect our choices?

The influence of electronic word of mouth (eWOM) has been heavily investigated in relation to online ratings. However, only a few studies examined the content of eWOM. From the perspective of the consideration sets model, consumers formulate an awareness set, a consideration set and a choice set before making a purchase. We argue that the formulation of these sets is influenced by eWOM based on its volume, valance and content relating to product attributes such as value for money, product sophistication and experiential feeling. In this study, the content of posts relating to Shure professional earphones in the online forum Mingo (www.mingo-hmw.com/forum) was captured and annotated. During the data collection period, Mingo was the sole online forum relating to professional earphones. Without much interference from other online forums, the circumstances of this study closely approximate a laboratory setting. In addition, we collected the actual sales, marketing costs, fault rates and number of retail stores selling the Shure professional earphones for 126 weeks. Our findings show that the weekly volume of posts, their relative number of positive (negative) comments, especially regarding value for money and sound quality, and those posts from the earlier week impinged strongly on weekly sales of Shure products. From the regression models, the explained variance in sales jumps from 0.236 to 0.732 due to the influence of eWOM.