Working Papers
- Project Networks and Reallocation Externalities,
with Harish Krishnan and Juan Serpa
Major revision at Management Science- Selected to MSOM Supply Chain SIG conference (2022)
- Selected to 1st ACM conference on Equity and Access in Algorithms, Mechanisms, and Optimization (EAAMO'21)
Abstract
When assigning responsibility for delays, project participants ignore a key fact: a project belongs to a large interconnected network of clients, contractors, and subcontractors. In this network, firms manage multiple projects concurrently. Accordingly, a disruption in one project forces all parties to reallocate resources from other concurrent projects, causing externalities across the wider project network. We use data from 2.6 million U.S. public projects – and their networks – to quantify the importance of these network externalities. - Selected to MSOM Supply Chain SIG conference (2022)
- The Effect of Expedited Payments on Project Delays:
Evidence from QuickPay Reform,
with Volodymyr Babich, Harish Krishnan, and Jie Ning
Abstract
Contractors are typically not paid instantaneously upon completing the project tasks and furnishing the invoice. We study the impact of payment timings on project delays. We develop theories that explain how payment duration affects project completion, and generate testable hypotheses. We empirically test these hypotheses using data on U.S. public projects. Our identification strategy uses a policy amendment that expedited payments to certain federal contractors as an exogenous shock.
Journal Publications
-
Managing Reputation Risk in Supply Chains: The Role of Risk-sharing under Limited Liability,
with Harish Krishnan
Management Science, 67(8): 4845-4862, 2021
Preprint: SSRN -
Solving Semi-open Queuing Networks with Time-varying Arrivals: An Application in Container Terminal Landside Operations,
with Govind Kumawat, Debjit Roy, and René de Koster
European Journal of Operational Research, 267(3): 855-876, 2018 -
A Cooperative Quay Crane-based Stochastic Model to Estimate Vessel Handling Time,
with Debjit Roy and René de Koster
Flexible Services and Manufacturing Journal, 29: 97-124, 2017 -
Modeling Emergency Evacuation with Time and Resource Constraints: A Case Study from Gujarat,
with Debjit Roy
Socio-Economic Planning Sciences, 51: 23-33, 2015
Book Chapter
- A Two-level Stochastic Model to Estimate Vessel Throughput Time,
with Debjit Roy and René de Koster
Progress in Material Handling Research: 2014, Material Handling Institute, Charlotte, NC.