Structural comparisons of networks and model-based detection of small-worldness

In this paper, we consider the problem of assessing the “level of small-worldness” of a graph and of detecting small-worldness features in real networks. After discussing the limitations of classical approaches, based on the computation of network indicators, we propose a new procedure, which involves the comparison of network structures at different “observation scales”. This allows small-world features to be caught, even if “hidden” deeply into the network structure. Applications of the procedure to both simulated and real data show the effectiveness of the proposal, also in distinguishing between different small-world models and in detecting emerging small-worldness in dynamical networks.     

The Low‐Pay No‐Pay Cycle: Are There Systematic Differences across Demographic Groups?

We investigate transitions between unemployment, low‐paid employment and higher‐paid employment using dynamic panel data methods applied to household panel data. We find state dependence in both unemployment and low‐paid employment and evidence of a low‐pay no‐pay cycle. However, we also find significant differences in effects across population subgroups. Typically, the young and better‐educated face lower penalties from unemployment and low‐paid employment. Further, low‐paid employment is preferable to unemployment for women regardless of their demographic characteristics, but for men who have only completed secondary schooling, low‐paid employment actually decreases the chances of entering higher‐paid employment by more than does unemployment.     

The Final Incidence of Australian Indirect Taxes

The Australian Bureau of Statistics provides a breakdown by industry of the revenue collected from each of the major indirect taxes in Australia. This information does not show who bears the ultimate burden of indirect tax as each industry may pass on its initial burden to others. Thus, the burden of the tax may be passed on round by round to indirect business purchases and final demand until the total burden of the tax is passed onto the final consumer. Using a method to derive final indirect tax incidence developed from earlier studies, the final incidence of a selection of indirect taxes in Australia is presented. The major innovation is to include the use of margin industries in the initial flows of the input-output matrix ensuring that taxes on inputs to margin services are fully passed forward onto the good or service that the consumer purchases. It is found that many goods and services that are initially exempt from the main indirect taxes, such as the wholesale sales tax, have significant effective tax rates once taxes on inputs to industry are taken into account.     

The Growth of Jobless Households in Australia

In this article it is shown that individual-based measures of joblessness and household measures of joblessness have diverged over the last twenty years with joblessness becoming increasingly concentrated in certain households.     

Introducing ‘Journeys Home’

Homelessness, despite being a major social policy issue in Australia, is an area that is not well served by data. Most sorely lacking is any large‐scale panel study that follows a broad sample of persons with recent experience of homelessness and unstable housing histories. In 2010, the Australian Government set about rectifying this deficiency when it commissioned the Melbourne Institute to undertake a new panel study, now known as ‘Journeys Home’. This study draws its sample from the population of Centrelink income‐support recipients, targeting persons identified in the administrative data as having recent experience of homelessness, as well as others with similar characteristics who may be vulnerable to housing difficulties in the future. This article summarises the design of this new study and reports on fieldwork outcomes from the first two waves of data collection.     

The Effects of Environmental Turbulence on New Product Development Strategy Planning

Managers need guidance on how to cope with turbulent environments in order to improve corporate performance. Research on environmental turbulence has suggested that firms adopt a less centralized, more organic structure in dynamic, uncertain environments. Little work has been done specifically, however, on how environmental turbulence affects strategy planning for new product development (NPD). In this article, we specify a baseline model with firm innovativeness, market orientation and top management risk taking as antecedents to NPD speed and corporate strategic planning; these in turn are modeled as antecedents to NPD program (not project) performance. Two conceptualizations of the role of environmental turbulence are examined: (1) that market turbulence and technological turbulence are additional direct antecedents to NPD program performance; and (2) that the baseline model is moderated by turbulence (that is, that the strengths of the paths differ depending on levels of turbulence). A cross-sectional survey methodology including four diverse industries [automotive, electronics, publishing, and manufacturing/research and development (R&D) laboratories] was used to test the hypotheses. The latter conceptualization is supported. In particular, the paths from innovativeness to strategic planning and from risk taking to NPD speed are significantly greater in highly turbulent environments. A set of managerial recommendations and implications are provided. First, managers must recognize the possible improvements in new product performance by actively including NPD personnel in corporate strategic planning and also by involving corporate planners in NPD activities. Second, managers also should recognize that turbulent environments heighten the need to make risky investments, and sometimes, risky decisions; risk-taking decisions ought to be encouraged in such environments.     

An Analysis of The Lowest Fares and Shortest Durations for Air-Tickets on Travel Agency Websites

Despite the existence of numerous published articles on website evaluations, the present tourism literature has no prior studies that examined the topics of lowest fares and shortest durations for air-tickets that are offered by travel websites. This study reports the findings of a study that investigated the practices of five online travel agency (OTA) websites. In terms of lowest airfares and the shortest in-flight durations (hereafter known as shortest durations) in four destinations for travelers who originated from Hong Kong, empirical findings showed the regional OTA outperformed other global leaders in airfares. Likewise, a smaller scale OTA offered lowest-fare air-tickets with the shortest durations. Practical implications are offered at the end of the article.     

Networks and market-based measures of systemic risk: the European banking system in the aftermath of the financial crisis

This article investigates the behaviour of the European banking system during the financial crises that occurred in the last decades. Among the various approaches for measuring systemic risk, we consider network analysis, which describes the linkages among financial institutions and their whole structure. We construct a time-varying network of the European banking system. Banks are linked to form a global interconnected system and they mutually influence one another in terms of risk. We model their reciprocal influence via a weighted and directed network, in which weights are related to risk measures that are based on equity returns. Then, we apply two network indicators to investigate the prominence of a bank in spreading and receiving risk from the others. The results enable us to capture many features of the banking system while identifying the global systemically important banks. Moreover, the results of the analysis over time show how interconnections change over periods that are characterized by various economic scenarios.

     

Accountants’ hybridization and juridification: a critical reflection on the fight against organized crime

Policy-makers and regulators are increasingly focusing on fighting organized crime. Preventing criminal organizations infiltrating an economy involves multiple groups of professionals operating in complex regulatory environments. This paper looks at whether the current regulations for the management of assets seized from organized crime are adequate. The focus is on the Italian setting, and the research included interviews with accountants, judges and police officers involved in the management of seized entities. The results have application worldwide.     

Interlocking directorates in Italy: persistent links in network dynamics

In this work we study the time evolution of interlocking directorates in Italy from 1998 to 2011 by means of dynamical networks. Our purpose is to assess if in Italy there is a connected and stable structure, due to the presence of directors with multiple mandates, like it happens in the German case. We find a very cohesive network structure, due to the presence of a few directors with multiple assignments and, unlike the German case, this structure is stable, but not connected. Moreover we propose an alternative approach to investigate the dynamics, based on temporal networks, in order to quantify the variation of links in a certain time period. We construct a unique cumulative network, where nodes are companies and the existence of an edge is related with the persistence in time of an interlock between two companies. This persistence is due on the one hand to the ownership of a few family firms, and on the other hand to cross-shareholdings between companies. To complete the analysis we also investigate whether the link stability results from the appointments of the same director or from the stepping in/out of different directors.