TY - JOUR TI - Does Net Buying Pressure Affect the Shape of Implied Volatility Functions? AU - Nicolas P. B. Bollen AU - Robert E. Whaley JO - The Journal of Finance PY - 2004 VL - 59 IS - 2 DO - 10.1111/j.1540-6261.2004.00647.x UR - https://doi.org/10.1111/j.1540-6261.2004.00647.x ER -