Purpose: Under the classical mean-variance framework, the purpose of this paper is to investigate the properties of the instability of minimal variance portfolio and then propose a novel penalized expected risk criterion (PERC) for optimal portfolio selection. Design/methodology/approach: The...

Purpose: The purpose of this study is to investigate how does key accounts managers’ (KAMs’) customer orientation affect customers’ repurchase intention and how do tie strength and structural holes in KAMs’ client networks moderate these linkages. Design/methodology/approach: Paired...

Purpose: This study aims to empirically examine knowledge management practices in China with the purpose to provide a holistic view regarding the current status of knowledge management at both national and organizational levels. Design/methodology/approach: Using a survey method, this study...

Purpose – The remarkable growth of wine tourism in recent decades has created opportunities for rural communities to diversify and stimulate development, and for travellers to enjoy an activity that brings together educational and gastronomic experiences. However, still today many areas around...

Using essentially all declared extraordinary and special cash dividends between 1926 and 2001 which are not preceded or followed by the same for a period of three years, we find no robust post-declaration long-term abnormal stock returns, even in sub-samples defined by the special dividend...

This cumulative working paper contains the unified joint research completed so far on monetary aggregation under risk, including the extension of index number theory needed to incorporate adjustments for risk into the rate structure, experiments on tracking ability of the unadjusted index, and...