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This paper's aim is to test for the presence of fractional integration, or long memory, in the daily returns of the Portuguese stock market using autoregressive fractionally integrated moving average (ARFIMA), generalised autoregressive conditional heteroskedasticity (GARCH) and ARFIMA‐FIGARCH models.

The data cover two periods: 4 January 1993‐13 January 2006 (full sample), and 1 February 2002‐13 January 2006 (that is, data are considered after the merger of the Portuguese Stock Exchange with Euronext).

The results from the full sample show strong evidence of long memory in stock returns. When data after the merger are considered, weaker evidence of long memory is found. It is concluded that the Portuguese stock market is more efficient after the merger with Euronext.

The findings of this paper are helpful to financial managers and investors dealing with Portuguese stock indices.

The purpose of this two-wave longitudinal study was to examine the role of mindfulness as mediator between social support and engagement and as a moderator in the relationship between work overload and burnout, both cross-sectionally and after one year.

The sample consisted of 243 Peruvian teachers. Structural equation modeling and SPSS Process Macro were used to test the hypothesis.

The results show that mindfulness mediated the relationship between social support and engagement at both times but doesn't moderate the relationship between work overload and burnout at either time.

This study highlights the role of mindfulness as a valuable personal resource in the workplace, as it facilitates a higher functioning at work while identifying relevant organizational characteristics that have an influence in its use.

El propósito de este estudio longitudinal de dos olas fue examinar el papel de mindfulness como mediador entre el apoyo social y el engagement en el trabajo; así como moderador en la relación entre la sobrecarga de trabajo y el burnout, tanto transversalmente como después de un año.

La muestra estuvo conformada por 243 profesores peruanos. Se utilizó el modelo de ecuaciones estructurales (SEM en inglés) y Process Macro para SPSS para probar la hipótesis.

Los resultados muestran que mindfulness media la relación entre el apoyo social y engagement en ambos momentos, pero no modera la relación entre la sobrecarga de trabajo y el burnout en ninguno de los dos.

Este estudio destaca el papel del mindfulness como un recurso personal valioso en el trabajo, ya que facilita un mejor funcionamiento al tiempo que identifica características organizacionales relevantes que influyen en su uso.

For better mapping the path of intellectual capital (IC) research, the purpose of this paper is to selectively review empirical studies of IC published, and identify theories, components and three dimensions of analysis: national IC (NIC), regional IC (RIC) and organizational IC (OIC).

The systematic literature review (SLR) subject to analysis is based on empirical studies made between 1960 and 2016, and focuses on three dimensions of analysis: NIC, RIC and OIC. Four research questions were designed, using the following databases, namely, Web of Science, Scopus and Google Scholar, for data collection purposes.

The SLR unveils a multidimensional taxonomy for measuring and classifying the type of IC applicable to the different levels of analysis and provides some recommendations for future studies of NIC, RIC and OIC, by outlining the need for clear definitions of components and measures of IC and identifying strengths, limitations and future research avenues.

In order to fill the gap found in the literature and the non-existence of a study clarifying the multiple dimensions of analysis of IC, this SLR makes a twofold, original contribution to the literature on management: providing an SLR of the main empirical studies dealing with different units of analysis; and identifying a multidimensional taxonomy for measuring and classifying the type of IC applicable to the different levels of analysis.