The Price of Illicit Drugs: 1981 through the - The White House

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Table A5. Mean Price and Parameter Estimates for Methamphetamine _______________________________________________________________________ Level of Average Price Distribution N per Pure Gram _______________________________________________________________________ Less than 10 pg 5509 239.884 -0.314(0.004) -0.687(0.006) 10 to 100 pg 3060 101.172 -0.299(0.012) -0.541(0.012) More than 100 pg 602 50.721 -0.114(0.023) -0.712(0.036) _______________________________________________________________________ Table A6. Mean Price and Parameter Estimates for Marijuana _______________________________________________________ Level of Average Price Distribution N per Gram _______________________________________________________ Less than 10 g 1644 12.617 -0.636(0.017) 10 to 100 g 722 9.160 -0.116(0.028) 100 to 1000 g 975 3.677 -0.279(0.022) More than 1000 g 216 1.869 -0.122(0.030) _______________________________________________________ The price model just described contained 109 parameter (29 for the 30 cities, 77 for the 78 quarters, and one each for amount, purity and intercept terms). Based on estimates of these parameters, we derived estimates for mean prices for each city in each quarter. For a given quarter, the 30 city means were multiplied by their respective DAWN weights (described below) and the sum of these contributions provided a weighted estimate for the mean price and mean purity in the U.S. for that quarter. The national results are shown in Tables 1-4, and Figures 1, 4, 7, and 9. Annualized versions of these are shown in Tables 6-9. A-8
4. An Alternative Model for Retail Price Additional information obtained from a DUF addendum data enabled us to estimate retail prices for cocaine and heroin by an alternative method. The DUF data provided arrestees’ answers to various questions about drug expenditures over the last 7 days, and in particular, the amount paid by cocaine and heroin users for their last drug transaction. The data came from six cities (New York, Washington DC, Portland, San Diego, Chicago, and San Antonio) over one year (Q3 1995 – Q2 1996) and were used to obtain frequencies for the amount paid in nominal dollars by retaillevel cocaine and heroin users. A retail purchase was defined as a purchase up to 100 nominal dollars, and prices were rounded to the nearest $10. The resulting cocaine and heroin price distributions are shown below in Figures A2 and A3. In the previous section we used the STRIDE data to estimate a model that assumes price depends on amount. In this section, we estimate the “reverse” model which supposes the amount purchased (in pure grams) depends on the price paid (in nominal dollars). We considered several formulations of this model and settled on: E(amount itj ) = exp( + city i + time t + log(price itj )) (1) V(amount itj ) = E 2 (amount itj ) (2) Table A7 provides estimates for the parameters associated with log(price). Both estimates are close to unity which suggests that there are no quantity discounts at the retail level. A-9
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The Price of Illicit Drugs: 1981 th
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Table of Contents Introduction.....
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Table C8. Annual Heroin Price and P
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Acknowledgements The authors and st
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transit zone programs almost certai
Page 14 and 15: The System To Retrieve Information
Page 16 and 17: Secondly, even if the raw data over
Page 18 and 19: same month, and an increase of $0.0
Page 20 and 21: purchases, at least as reflected by
Page 22 and 23: difficulty this causes is that STRI
Page 24 and 25: References Box G.E., Jenkins G.M.,
Page 27 and 28: Figure 1: Estimated Cocaine Price P
Page 29 and 30: Figure 3: Estimated Cocaine Purity
Page 31 and 32: Figure 5: Comparison of Heroin Reta
Page 33 and 34: Figure 7: Estimated Methamphetamine
Page 35: Figure 9: Estimated Marijuana Price
Page 38 and 39: Table 1: Estimated Quarterly Price
Page 54 and 55: Table 7: Estimated Annual Price per
Page 56 and 57: Table 9: Estimated Annual Price per
Page 58 and 59: Figure A1. Flow Chart for STRIDE an
Page 60 and 61: the subsequent removal of extreme r
Page 62 and 63: From the viewpoint of the model, th
Page 66 and 67: 200 180 160 Number of Observat ions
Page 68 and 69: Corresponding predicted real prices
Page 70 and 71: model because each purity observati
Page 72 and 73: Figure A4. Predicted Weights for Co
Page 74 and 75: Figure A5. Monthly Retail and Whole
Page 76 and 77: The approach used to obtain the Sou
Page 78 and 79: Table B1: Estimated DAWN Weights fo
Page 106 and 107: Table B5: Comsumer Price Index, Fir
Page 108 and 109: Table C1. Annual Cocaine Price and
Page 110 and 111: Table C3. Annual Cocaine Price and
Page 112 and 113: Table C5. Annual Heroin Price and P
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Table C7. Annual Heroin Price and P
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Table C9. Annual Methamphetamine Pr
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Table C11. Annual Methamphetamine P
Page 120 and 121:
Table C13. Annual Marijuana Price f
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Table C15. Annual Marijuana Price f
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The Price of Illicit Drugs: 1981 through the - The White House

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