Jiding Zhang

Jiding Zhang
  • Doctoral Candidate

Contact Information

  • office Address:

    527.9 Jon M. Huntsman Hall
    3730 Walnut Street
    Philadelphia, PA 19104

Research Interests: Service Operations, Revenue Management, Marketplace Analytics, Empirical Operations Management

Links: Personal Website

Overview

Jiding Zhang is a fifth-year doctoral student in the Operations Management track. She is interested in service operations, revenue management, and marketplace analytics. Her recent research analyzes the operations and economics of various online platforms.

Jiding holds a bachelor’s degree in Economics from Shanghai Jiao Tong University.

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Research

  • Amandeep Singh, Jiding Zhang, Senthil Veeraraghavan (Working), Fulfillment by Platform: Implications for Upstream Market Power.

  • Jiding Zhang, Sergei Savin, Senthil Veeraraghavan (Under Revision), Revenue Management in Crowdfunding.

    Abstract: We develop a model of crowdfunding dynamics that maximizes revenue for a given fundraising campaign by optimizing both the pledge level sought from donors or backers and the duration of the campaign. Our model aligns with the patterns of backer/donor arrival and pledging observed on crowdfunding platforms, such as Kickstarter. Using our model, we calibrate the revenue lost from using pre-specified pledge levels or campaign durations. We show that under the optimal design, the pledge level sought decreases as the goal of a campaign increases, with a more pronounced effect for both very low and very high campaign goals. We further demonstrate how uncertainty in pledge accumulation improves campaign revenue and aids campaign success. In particular, we show that campaigns with high goals benefit from highly uncertain environments more than campaigns with low goals.

  • Elena Belavina, Karan Girotra, Ken Moon, Jiding Zhang (Working), Matching in Labor Marketplaces: The Role of Experiential Information.

    Abstract: Online labor marketplaces assign workers to short-term jobs. For some jobs, the choice of the best worker is based on ex-ante observable information (e.g., driver assignment based on location in ride-hailing). In others, the assignment is driven by experiential information, that is information obtained privately only through the worker performing the job (e.g., the fit of a childcare provider with a family). This study develops an empirical framework to impute the relative importance of each kind of information from participants' past hiring choices. Our moment inequality approach accommodates high worker turnover, varying choice sets, and limited observations of a very large number of market participants -- all key characteristics of online labor markets. We apply our framework to two markets, exploiting a natural experiment that changed marketplace commissions. Based on over 1.2M hiring decisions, we estimate that experiential information is a key driver of hiring choices, while ex-ante observable fit is relevant only for the simplest jobs. Using our estimates, we propose and evaluate alternate assignment policies. The best-performing policies prioritize repeat work and, surprisingly, ignore ex-ante observable information to instead experiment with new workers and generate experiential information. Such policies can increase buyer welfare by as much as 45.3% (47.1%) of gross revenue in the Data Entry (Web Development) market compared to the current practice of skills-based matching. Policies exploiting buyers' past revealed preferences (in repeat work) without incorporating exploration still under-perform by 18.9% in Data Entry and 8.7% in Web Development.

Teaching

Instructor

  • Wharton Math Camp (PhD), Summer 2019

Teaching Assistant

  • OIDD 615, Operations Strategy (MBA elective), Spring 2019
  • OIDD 101, Introduction to Operations and Information Management (undergraduate core), Spring 2017, Spring 2018

Activity

Latest Research

Amandeep Singh, Jiding Zhang, Senthil Veeraraghavan (Working), Fulfillment by Platform: Implications for Upstream Market Power.
All Research