{
  "id": "medium013",
  "question": "In 2022, in the information transmission, software and information technology services industry, researchers aim to characterize a type of dual anomaly enterprises with high valuation and high R&D investment, yet weak profitability and insufficient patent influence. The specific criteria are: valid enterprises must have complete data for all four indicators—market cap, revenue (non-zero), R&D investment ratio, and cumulative total patent citations; net profit margin is calculated as net profit amount divided by revenue amount times 100%; among all valid enterprises, using each indicator's median as the threshold, filter enterprises where market cap exceeds the median and net profit margin is below the median, while R&D investment ratio exceeds the median and cumulative patent citations are below the median. What is the proportion of such enterprises among all valid enterprises?",
  "guidelines": "Answer format: proportional value (retain 2 decimal places, unit: %). If relevant data cannot be found, please answer \"No relevant data found\"",
  "answer": "3.49",
  "metadata": {
    "db": "bm_rag_qa",
    "level": "medium",
    "category": "hypothesis_verification"
  },
  "steps": [
    "Filter all enterprises with industry=\"information transmission, software and information technology services\" from company_profile.csv, finding 644 enterprises.",
    "From company_operation_status.csv, associate 2022 data for these enterprises based on bmCode, extract market cap, net profit amount, revenue amount, R&D investment ratio, and cumulative total patent citations fields. Successfully associated 644 enterprises.",
    "Filter out 100 enterprises with any of market cap, revenue amount, R&D investment ratio, or cumulative total patent citations empty, or with zero revenue. 544 valid enterprises remain.",
    "Calculate net profit margin = net profit amount / revenue amount × 100%. Net profit margin range: -1857.0154% to 80.7125%.",
    "Calculate median for each of the four indicators: median market cap = 59.5, median net profit margin = 3.2905%, median R&D investment ratio = 12.155000000000001, median cumulative total patent citations = 363.0.",
    "Filter dual anomaly enterprises satisfying all four conditions (market cap > median, net profit margin < median, R&D investment ratio > median, cumulative patent citations < median), 19 enterprises in total.",
    "Calculate proportion = 19 / 544 × 100% = 3.49%."
  ],
  "steps_num": 7,
  "milestone": "{\"Total number of valid enterprises\": 544, \"Median market cap\": 59.5, \"Median net profit margin (%)\": 3.2905, \"Median R&D investment ratio\": 12.155, \"Median cumulative patent citations\": 363.0, \"Number of anomaly enterprises\": 19}"
}