@article{ppcrimasystemformultilayerdagbasedpublic,
  title = {PPCR-IM: A System for Multi-layer DAG-based Public Policy Consequence Reasoning and Social Indicator Mapping},
  author = {Zichen Song and Weijia Li},
  year = {2026},
  eprint = {2602.21650},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2602.21650},
}