This study tests the validity of the purchasing power parity (PPP) theory using a panel of ten Arab countries. It also measures the speed of convergence for the panel and for the Gulf Cooperation Council (GCC), including Bahrain, Kuwait, Qatar, Saudi Arabia and United Arab Emirates which follow...

There is a large literature that examines purchasing power parity (PPP). The growth in this literature is mainly due to the absence of a consensus view on whether or not PPP holds. This paper considers PPP for 11 Middle Eastern countries using a number of tests: the one-break test unit root, the...

Purpose – The purpose of this paper is to focus on whether the deviations from the cointegrating relationship possess long memory and the fractional cointegration analyses may capture a wider range of mean-reversion behaviour than standard cointegration analyses. Design/methodology/approach...

Purpose The purpose of this paper is to examine the validity of the purchasing power parity (PPP) hypothesis for two Southern African countries, namely: Lesotho and Zambia. Design/methodology/approach The authors utilized four econometric tests to examine the existence of the PPP hypothesis in...

This paper directs attention to the use of Instagram by political parties in the Swedish national elections in 2014. It investigates how political parties made use of Instagram – a platform centered around images – when engaging in interaction with their followers on the platform. Therefore,...

This paper investigates the existence of market power in the Swedish food and beverage industry and how market power has been affected by European competition (the Single Market and Swedish EU membership). The study makes use of a census of some 500 firms for the period 1990–2002. The results...