human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge groups authors who co-authored the same paper.

Details of the hypergraph:
Center hyperedge (induced by source paper "Optimal auction design for agents with hard valuation problems"):
  Abstract: As traditional commerce moves on-line more business transactions will be mediated by software agents, and the ability of agent-mediated electronic marketplaces to efficiently allocate resources will be highly dependent on the complexity of the decision problems that agents face; determined in part by the structure of the marketplace, resource characteristics, and the nature of agents' local problems. We compare auction performance for agents that have hard local problems, and uncertain values for goods. Perhaps an agent must solve a hard optimization problem to value a good, or interact with a busy and expensive human expert. Although auction design cannot simplify the valuation problem itself, we show that good auction design can simplify meta-deliberation - providing incentives for the "right" agents to deliberate for the "right" amount of time. Empirical results for a particular cost-benefit model of deliberation show that an ascending-price auction will often support higher revenue and efficiency than other auction designs. The price provides agents with useful information about the value that other agents hold for the good.

Includes members:
  Member "Vote elicitation: complexity and strategy-proofness":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "On merging strategy-proofness")
  Member "i Bundle: an efficient ascending price bundle auction":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "Combinatorial Auction Design")
  Member "On the choice of obtaining and disclosing the common value in auctions":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "Manipulating Information Providers Access to Information in Auctions")
  Member "Frugal path mechanisms":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "A New Look at Selfish Routing")

Question: Please tell me which research area the co-authored paper (i.e., the source paper of the center hyperedge) belongs to. The 4 classes are: Computer science, Mathematics, Engineering, Economics, Psychology, Business. Directly output the class name.

gpt: Computer science