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Diversified trading networks have recently drawn a great deal of attention. In the process, the importance of diversity has perhaps been overemphasized. Using the trade in port wine from Portugal to Britain as an example, this essay attempts to show how a market once dominated by general, diversified traders was taken over by dedicated specialists whose success might almost be measured by the degree to which they rejected diversification to form a dedicated “commodity chain.” The essay suggests that this strategy was better able to handle matters of quality and the specialized knowledge that port wine required. The essay also highlights the question of power in such a chain. Endemic commodity-chain struggles are clearest in the vertical brand war that broke out in the nineteenth century, which, by concentrating power, marked the final stage in the transformation of the trade from network to vertical integration.

Purpose – This chapter will discuss how the positional self and prior experiences can influence the emotional self within the research journey, for example, being a sibling and losing a sibling. It explores the researcher’s emotional experience when working with children and their families, with a specific focus on the influence of the researcher presence and the sibling equilibrium.

Methodology/Approach – The chapter draws on the dramaturgical social interactions encountered in qualitative research which explored the experiences of siblings living in the context of cystic fibrosis. The study uses narrative inquiry and creative participatory methods to elicit sibling stories and provides insight into their worlds.

Findings – The chapter reflects on specific situations encountered on entering, engaging in and leaving the field, which had a significant emotional impact. Two sibling vignettes will be presented along with a discussion of how reflective metaphorical expression can be applied as a method of processing and coping with the research context.

Originality/Value – The chapter argues that the positional self and prior experiences can influence the emotional self within the research journey, and that reflective metaphorical expression can be used as a strategy to process thoughts and gain greater understanding of a situation as well as to provide an emotional release for the researcher. It also suggests that conducting research over a longer time period, as opposed to one visit, can be beneficial in terms of participant and researcher emotional transition.

Advances in computers and telecommunications and the development of the Internet have been applied to develop new transaction technologies that lower transaction costs. By lowering transaction costs, these changes in transaction technology make possible transaction innovation, that is, the development of new types of market transactions. Transaction innovation changes not only business methods and organizational design, but the content of transactions and the way that markets are organized. I consider the impact of transaction innovation on the role of the firm in various economic activities including market clearing, auction design, price adjustment, quality certification, and agency.