Abstract Over several decades, the Vietnamese government has increasingly cut its investment in public higher education system and also introduced a cost-sharing mechanism. Under this scheme, universities have been seeking other sources of revenue. Despite bold emphasis on need for revenue diversification Vietnam, there is little empirical evidence status quo finance. The purpose paper was to f...

The paper examines the impact of marketing segmentation practices on the performance of selected Nigerian commercial banks in the post consolidation era 2005 to date. Data employed were mainly secondary while the research design was exploratory in nature relating such basic variables as market segmentation practices of market share; pricing and geographical branch location to performance. Stati...

Market power refers to conditions where the providers of a service can consistently charge prices above those that would be established by a competitive market. There are many well known definitions of market power, including indices intended to quantify the degree of market concentration of energy supplies. This paper explores a method by which one of the standard indices in market power analy...

This paper investigates the pricing of differentiated products in a vertical sector, with a focus on the role of industry concentration. We propose concentration indices that extend the classical Hirschman-Herfindahl Index (HHI) to include vertical structures that manage differentiated products. We also identify how substitution/complementarity among products affects pricing. We compare our pro...

In most markets, buyers differ in their ability or willingness to switch supplier. This note proposes a novel industry concentration measure that takes this heterogeneity into account. The index increases the share of captive sales, coincides with Hirschman–Herfindahl Index when none are captive, and ”pure monopoly” value 1 all captive.

We investigate the impact of Certificate of Need (CON) Law and its stringency on Inpatient market competition measured by the Herfindahl-Hirschman Index (HHI). We show that on average the CON legislation enhances competition between Inpatient units. Additionally, the size, demographics, and health insurance coverage of the state population are found to significantly impact Inpatient market comp...

Concentration phenomena concern the ICT market. Though the regulatory action has been active mainly in the telecom network operators industry, even more significant worldwide concentration phenomena affect other industries. The market of mobile operating systems is analysed through two concentration indices to get a quantitative picture of the current situation and its evolution over time: the ...

This paper examines the impact of the concentration of the property insurance industry on economic growth in China. We first compute the Herfindahl-Hirschman Index (HHI) for the Chinese property insurance industry and establish a two-step system of generalized methods of moments (Two-Step SYS-GMM) estimation to compute the economic effect using a unique data set from the years 1980 to 2014. The...

I examine how mergers affect performance in network industries. Network providers choose quality for communication within the provider’s own network, quality for communication between providers’ networks, and output. Cross-border mergers provide firms an incentive to increase output because merged firms internalize positive network externalities. Several results modify conclusions in the curren...