CAPM预期收益

def solve(beta, rf, market_return):
    market_premium = market_return - rf
    expected_return = rf + beta * market_premium
    return {"Beta": beta, "无风险利率": rf, "市场收益": market_return, "市场溢价": round(market_premium, 4), "预期收益": round(expected_return, 4)}