A systematic mapping study of process mining

This study systematically assesses the process mining scenario from 2005 to 2014. The analysis of 705 papers evidenced ‘discovery’ (71%) as the main type of process mining addressed and ‘categorical prediction’ (25%) as the main mining task solved. The most applied traditional technique is the ‘graph structure-based’ ones (38%). Specifically concerning computational intelligence and machine learning techniques, we concluded that little relevance has been given to them. The most applied are ‘evolutionary computation’ (9%) and ‘decision tree’ (6%), respectively. Process mining challenges, such as balancing among robustness, simplicity, accuracy and generalization, could benefit from a larger use of such techniques.     

Understanding drivers and outcomes of lurking vs. posting engagement behaviours in social media-based brand communities

ABSTRACT

Social media-based brand communities (SMBBC) are ideal tools to develop Consumer Engagement (CE). Yet, brands do not fully understand whether members are really loyally engaged with the brand and uncertainties remain regarding SMBBC return on investment. Therefore, our aim is to understand what drives CE within SMBBC, to relate it to different CE behaviours and to study its impact on brand loyalty. Data from 213 Facebook users was analysed using PLS-SEM. The study concludes that the drivers for passive/lurking and active/posting behaviours differ and vary according to brand type, with the former revealing a stronger positive association with brand loyalty than the latter. This study also provides valuable insights into CE literature and to brands holding SMBBC, helping them to successfully develop social media strategies.     

Conditional risk-neutral density from option prices by local polynomial kernel smoothing with no-arbitrage constraints

Review of Derivatives Research - A new approach is considered to estimate risk-neutral densities (RND) within a kernel regression framework, through local cubic polynomial estimation using intraday...     

Corporate social responsibility,country-level predispositions,and the consequences of choosing a level of disclosure

We study the different levels of corporate social responsibility (CSR) disclosures of the largest European firms. We find that firms are more predisposed to disclose more CSR information in countries with better investor protection, higher levels of democracy, more effective government services, higher quality regulations, more press freedom, and a lower commitment to environmental policies. Our analysis of the association of different levels of CSR disclosure with share prices indicates that a high level of CSR disclosure is associated with higher share prices, whereas a low level of CSR disclosure in sensitive industries is associated with lower share prices (compared to no disclosure). These results are also present when we analyse changes in CSR disclosure and are robust to the inclusion of an accounting quality measure in our model. The overall effect of the association of higher levels of CSR disclosure with higher share prices is stronger in countries with more democracy, more government effectiveness, better regulatory quality, and more press freedom. Therefore, market participants find CSR disclosures more informative in countries where investors are in a better position to voice their concerns and where there is better regulation and more effective government implementation of regulations.     

Goodwill and Mandatory Disclosure Compliance: A Critical Review of the Literature

The aim of this paper is to critically analyse the literature published from 2002 to mid‐2015 on disclosures of goodwill and their respective impairment tests; identify the main contributions of the literature, as well as its limitations; and suggest new approaches for future research. We also present a summary of the main determinants of disclosures on goodwill in the literature as well as the still scarce studies’ conclusions of those disclosures in the market. After a review of the literature, we discuss the need to reinforce enforcement mechanisms, so as to improve the level of compliance of disclosures on goodwill and their impairment tests. The majority of the analysed literature reveals that the information disclosed about goodwill is incomplete and largely heterogeneous, indicating a reduced level of compliance with the disclosures required by accounting standards. The paper may support the development of future empirical studies about goodwill's disclosures, which will bridge the identified gaps in the literature.     

Royalty licensing

Most patent licensing agreements observed empirically include either per-unit or ad valorem royalties. The theoretical literature generally focuses on per-unit royalties. We provide a simple justification for the presence of ad valorem royalties in licensing contracts.     

Can apprenticeships contribute to innovation in SMEs? The case of Catalonia

The objective of this study is to analyse the contribution of students of vocational education and training (VET) to the innovation processes of small‐ and medium‐sized enterprises (SMEs) during their apprenticeships. Qualitative research was conducted through in‐depth interviews with 97 respondents in Catalonia, including VET teachers and students, SME managers, and social and institutional agents. Our findings reveal that public institutions have a partial view of innovation, mostly influenced by an industrial positioning, which leads to the neglect of other components, such as the social aspects. In addition, regarding public programmes designed to foster innovation through VET, the results show a lack of coordination between VET schools, SMEs and public administrations. Finally, in relation to apprentices, we find a low participation in innovation processes by students during their apprenticeship as a consequence of the bad implementation of innovation public programmes, due to the lack of coordination between VET schools and SMEs.     

Further empirical evidence on block transactions below the MBR: the Spanish market

There is a relatively unknown market for partial control or corporate influence in Spanish listed firms, where the control transaction size is below the legal threshold that triggers a mandatory tender offer, as this kind of deal looks for exercising some degree of control, but not a full control. The goal of this paper is to go further in its empirical analysis by exploring its distinguishing features, using as the criterion to define its transactions obtaining a seat in the board of directors. We find that these deals are mainly located in the segment of the market of large trades where the rules for private negotiations are easier to implement; the size of the block is relatively large and it is negotiated as a whole block. Besides, the most common buyer has no previous stake in the firm. We find no evidence that the buyers pay, in median, for a seat on the board of directors, but the variability of the premiums for those blocks is higher and shows that buyers that had no control position in the target firm pay more for being among largest shareholders (partial control) and less for not being among them (influence).     

Sociological explanation and mixed methods: the example of the Titanic

Quality & Quantity - The question of how and with what methods the social sciences should explain phenomena is fiercely contested. While several scholars have argued that mixed methods may help...     

IMPORTANCE OF DEMOGRAPHICS FOR HOUSING IN THE OECD ECONOMIES

The aim of this contribution is to study the role of demographics in the explanation of house prices in the last few decades. Special attention is paid to the role, which has been played by three groups of population that have different necessities in terms of the amount of housing services that they wish to consume: (a) population aged between 25 and 44 years old; (b) population aged between 45 and 64 years old; and (c) retirees. Following our discussion of recent trends in demographics and relevant stylized facts, the construction of a theoretical framework ensues; finally we provide empirical evidence in the case of 17 OECD economies over the period 1970–2013, discuss it in relation to our theoretical framework before we summarize and conclude.