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A 5.5 KB dataset by Bo Zhu, updated in March 2026, examines the psychological impact of a first child on parents. It employs an instrumental variable approach for social science research. The specific row count and column features are not provided in the input.
Data is in XLS format, requiring compatible software (e.g., Excel, LibreOffice) to open. The 5.5 KB size indicates a very limited dataset, potentially containing only summary statistics or a small sample.