Accounting and Finance: authorship and citation trends

Accounting and Finance (A&F ) has experienced a surge in published research in the last decade. The analysis here reveals a marked increase in the number of published articles in A&F since 2003, a distinct trend for published papers to have a larger number of authors, a significant and stable contribution by the top 5 Australian accounting/finance departments, as well as a notable increase in contribution from non‐US foreign universities, particularly those located in the UK, Canada, Hong Kong, Singapore and Spain. An analysis of citations indicates the increasing impact of A&F in recent years.     

Separation in Cointegrated Systems and Persistent-Transitory Decompositions

The notion of separation in cointegrated systems helps identifying possible sub-system structures that may reduce the complexity of larger systems by yielding a more parsimonious representation of the times series. In this paper we demonstrate that although the subsystem cointegration analysis in such systems can be conducted in case of both completely and partially separated systems, the dual approach, i.e. calculation of the common stochastic trends, may turn out to yield properties of the trends that differ depending upon the type of separation under consideration. In particular, we demonstrate how persistent-transitory (P-T) decompositions and long- and short-memory factorizations of a multivariate time series will interact across systems when considering the presence (or absence) of different types of separation. Generalizations to non-linear error correction models are briefly discussed.