Research

Research Interests: Technology and Innovation; Buyer-Supplier Relationships; Supply Chain Networks; Supply Chain Innovation; AI and Innovation.

Methods: Advanced Applied Econometrics; Causal Inference; Quasi-Experimental Designs; Difference-in-Differences; Machine Learning; Graph Neural Networks.

Dissertation Research

Innovation and Adaptation in Buyer-Supplier Relationships: Three Essays on Technological and Institutional Change

Dissertation Committee

  • Adrian Choo (Co-Chair), Associate Professor, Department of Supply Chain Management
  • Sri Talluri (Co-Chair), Hoagland-Metzler Chair in Purchasing and Supply Management, Department of Supply Chain Management
  • Anjana Susarla, Omura-Saxena Professor in Responsible AI, Department of Accounting and Information Systems
  • Jafar Namdar, Assistant Professor, Department of Supply Chain Management
  • Chandu Manchiraju, Assistant Professor, Department of Supply Chain Management

All at the Eli Broad College of Business, Michigan State University

Job Market Paper Bridging or Leaping? How Suppliers Respond to a Buyer’s Technological Transition

with Adrian Choo and Sri Talluri

Status: Manuscript in preparation for submission to Production and Operations Management

  • Studies how the buyer technological transition triggered by an exogenous shock affects supplier innovation.
  • Uses a quasi-experimental difference-in-differences design to estimate changes in supplier innovation following the buyer’s transition.
  • Explains how suppliers adapt when a buyer suddenly shifts to a new technology, extending research on buyer-supplier innovation.

Supplier Intellectual Property Protection and Supply-Base Reconfiguration

with Adrian Choo, Sri Talluri, and Anjana Susarla

Status: Data analysis in progress

  • Studies how buyers adjust their supply bases when legal protection for their suppliers’ innovation weakens.
  • Uses a legal event that weakened protection for certain types of patents as a source of variation.
  • Applies a difference-in-differences design with continuous treatment exposure to panel data from FactSet, Compustat, and PatentsView.

Innovation Knowledge Across Supply Chain Boundaries

with Adrian Choo and Sri Talluri

Status: Research in progress

  • Examines how external institutional changes affect buyers’ use of technological knowledge from established suppliers relative to other external organizations.
  • Uses staggered policy changes as a source of variation and tracks buyers’ use of technological knowledge from external sources.
  • Applies a staggered difference-in-differences design to several archival datasets.

Non-Dissertation Research Work

Substitutability Risks in Automotive Supply Chains

with Adrian Choo, Sri Talluri, and Anjana Susarla

Status: Research in progress

  • Defines substitutability risk as uncertainty in finding alternative materials or suppliers.
  • Evaluates risk through supplier concentration, technological and intellectual-property constraints, and geopolitical and geographical factors.
  • Develops a supplier-level measure using machine-learning methods and data from company reports, supply chain disclosures, and industry databases.
  • Identifies indicators of substitutability risk that may not be captured by conventional supply chain risk measures.

Publications

Peer-Reviewed Book Chapter

Bhattacharyya, S. S., and A. Shrey. (2021). “Supply Chain Startups in India: A Cross-Case Comparative Analysis.” In Research Anthology on Small Business Strategies for Success and Survival, 1014–1039. IGI Global. doi:10.4018/978-1-7998-9155-0.ch050

Research Reports and Working Papers

Dutt, A., A. Shrey, and D. Roy. (2023). “Changing Landscape of Logistics in India with Multimodal Logistics Parks.” Indian Institute of Management Ahmedabad.

Shrey, A., A. Dutt, and D. Roy. (2022). “Impact of COVID-19 Disruptions on the Supply Chain: Insights from India.” IIMA Working Paper WP 2022-06-01, Indian Institute of Management Ahmedabad. EconPapers · PDF