Optimising market share and profit margin:SMDP-based tariff pricing under the smart grid paradigm

Smart grid technologies have given rise to a liberalised and decentralised electricity market, enabling energy providers and retailers to have a better understanding of the demand side and its response to pricing signals. This paper puts forward a reinforcement-learning-powered tool aiding an electricity retailer to define the tariff prices it offers, in a bid to optimise its retail strategy. In a competitive market, an energy retailer aims to simultaneously increase the number of contracted customers and its profit margin. We have abstracted the problem of deciding on a tariff price as faced by a retailer, as a semi-Markov decision problem (SMDP). A hierarchical reinforcement learning approach, MaxQ value function decomposition, is applied to solve the SMDP through interactions with the market. To evaluate our trading strategy, we developed a retailer agent (termed AstonTAC) that uses the proposed SMDP framework to act in an open multi-agent simulation environment, the Power Trading Agent Competition (Power TAC). An evaluation and analysis of the 2013 Power TAC finals show that AstonTAC successfully selects sell prices that attract as many customers as necessary to maximise the profit margin. Moreover, during the competition, AstonTAC was the only retailer agent performing well across all retail market settings.

Strategy as practice:Interactive governance spaces and the corporate strategies of retail transnationals

There is growing interest in the role of corporate governance systems within the strategy-making process of firms. Using a 'strategy as practice' perspective, we conceptualize the governance system as a contested space in which management and security analysts mutually adapt/transform and enact corporate strategies vis-à-vis argumentation. Synthesizing this micropractice perspective within corporate governance research, the supple role of securities analysts' arguments in shaping corporate strategies assumes a new significance. It also provides a basis for observing and understanding the contested nature of the retail internationalization process. The implications and opportunities for management studies and economic geography are considered. © The Author (2007). Published by Oxford Press. All rights reserved.

International retail restructuring and divestment: the experience of Tesco

A key purpose of this study is to explore the lessons learned from international retail divestment and market withdrawal experiences. Drawing on 33 in-depth interviews with leading investment banks and key retail executives at Tesco, the study investigates the company's international restructuring and divestment activities in Ireland and France during the mid -1980s and 1990s. It has been demonstrated that, despite the progressive merger and acquisition wave sweeping through the corporate retail landscape recently, international retail divestment is quite widespread. The main conclusion from this study is that Tesco originally did not envisage divestment or de-internationalisation as part of the original internationalisation strategy process in either the acquisition of Three Guys in Ireland or Catteau in France. There was no appreciation from Tesco during their early period of expansion of the fact that exit pressures might arise during the course of market entry. In this regard, the case study provides insights into the relationship between investment and divestment within the context of international retail restructuring. The case evidence also demonstrates the positive impact of the Three Guys and Catteau divestments which helped management to refocus and rejuvenate the company's internationalisation process.

The nature of international retail divestment:Insights from Ahold

Purpose - This paper aims to explore the nature of divestment within the context of retailer internationalisation. Design/methodology/approach - It focuses on the activities of the Dutch food multinational retailer Royal Ahold (Ahold). Drawing on 37 in-depth interviews with investment banks and executives, this paper provides a number of insights into Ahold's international retail divestment activities within the context of a broadly successful international investment strategy. Findings - It offers some new insights into the multidimensional nature of international retail divestment construct in terms of the operational as well as more subtle and less visible non-operational international retail divestments. It is concluded from this study that, rather than portraying strategic and opportunistic approaches as binary opposites, a retail firm may have varying degrees of approaches to international retail divestment, and these may not necessarily be isomorphic across different countries. Research limitations/implications - The paper explores international retail divestment from a rather broad perspective, although it is hoped that these parameters can be used to raise a new set of more detailed priorities for future research on international retail divestment. Practical implications - This paper raises a number of interesting issues such as whether retailers initially take divestment seriously and the degree to which this is actually possible during market entry. Originality/value - As called for in the literature, this study examines divestment in the broadest possible fashion, thus addressing a major gap in our understanding of the whole internationalisation process. © Emerald Group Publishing Limited.

New directions for international retail joint venture research

This paper contends that a range of questions arising from the geographical and organizational dynamics of international retail joint ventures have been bypassed by studies in the international retail field. It argues that, despite its importance as a corporate growth strategy, comparatively less is known about the way in which retailers have employed joint ventures in international markets. Based on a review of the literature and illustrated with examples of international retail joint venturing activity, this paper reveals several gaps in our understanding of the internationalization process of retail firms. Suggestions for further research are made throughout the paper on the basis of gaps in the retailer internationalization literature.

Chain-store pricing and the structure of retail markets

This paper examines competition between chain-stores and independent retailers in the UK retail opticians' market. We demonstrate that the pricing policy adopted by chain-stores can determine the impact their entry has on independent retailers. Crucially, in this market the chain-store retailers set an identical national price across all local markets. Our results suggest that this pricing strategy lessens the detrimental effect competition from chain-stores has on independent retailers. © 2014 Springer Science+Business Media New York.