What determines vertical scope? Transactions cost economics (TCE) has been the dominant paradigm for understanding "make" vs. "buy" choices. However, the traditional focus on empirically validating or refuting TCE has taken attention away from other possible drivers of scope, and it has rarely...

This paper shows how idiosyncratic resources can be the basis of sustained profitability and persistent heterogeneity under competitive conditions: Generic inputs purchased in the market become idiosyncratic resources by investments in customization. Analytically, we show how heterogeneous firms...

Designing a firm’s boundaries can lead to substantial strategic regeneration. But the question is, how? Moving beyond transaction-level analysis, we consider how the design of the firm’s overall boundaries (rather than individual make-vs-buy choices) yield strategic advantages in addition to...

Using a novel database containing the time-series details of the organizational structure of individual bank holding companies, this paper presents the first population-wide study of the transformation in business scope of U.S. banks. Expanding scope has a negative impact on performance on...

A surprisingly neglected facet of sector evolution is the evolutionary analysis of firms', and thus a sector's, scope. Defining a sector as a group of firms that can change their scope over time, we study the transformation of U.S. banking firms. We undertake a sectoral, population-wide study of...

This paper shows how idiosyncratic resources can be the basis of sustained profitability and persistent heterogeneity under competitive conditions: Generic inputs purchased in the market become idiosyncratic resources by investments in customization. Analytically, we show how heterogeneous firms...

This paper provides an integrative analysis of the drivers of vertical scope, using analytical and computational methods. I propose a model with two vertical segments (upstream and downstream), with firm populations that have heterogeneous capabilities, and an intermediate market subject to...