From economic gains to social losses: How stories shape expectations in the case of German municipal finance

This paper analyzes how stories shaped treasurers' expectations in municipal swap activities and contributes to the sociological debate on the mechanisms of expectation formation. Employing a deductive variant of process tracing, it synthesizes the literature on expectations in economic decision making with the literature on the diffusion of "ideas", "myths", and "fashions" in organization theory and management studies. The swap story has spread since the mid-1990s among German municipalities. At the heart of this story is the replacement of traditional borrowing with active portfolio optimization; financial instruments known as swaps play a leading role. This paper examines how stories shape expectations. Specifically, it delves into how the swap story, as a solution to the financial woes of local governments, shaped these governments' expectations despite the uncertainty resulting from the instruments' complexity. We argue that the effect of stories on expectations depends on timing. Expectations at an early stage are shaped by economic analyses to reduce uncertainty, while expectations at a later stage are primarily shaped by societal pressures and an established trend. These two distinct mechanisms produce expectations related to economic and social consequences, respectively. Selecting four typical cases, our analysis confirms that stories affected the formation of treasurers' expectations regarding the use of swaps through these different mechanisms.