*****************************************************************
31. Pesticide tax, cropping patterns, and water quality in south
central Texas.
Shumway, C. R.; Chesser, R. R. 

J-agric-appl-econ v.26, p.224-240. (1994).
Includes references.
Descriptors: pesticides-; cropping-systems; water-quality;
water-supply; taxes-; economic-impact; demand-; groundwater-;
equations-; agricultural-production; texas-; ad-valorem-tax
Abstract: Abstract: The impact of an ad valorem pesticide tax on
cropping patterns and pesticide use was examined in the South
Central Texas Crop Reporting District. Output supply equations
were econometrically estimated and used in the simulation. A 25
percent tax on pesticide was estimated to have major impacts on
cropping patterns and on pesticide use. Assuming other input and
output prices were unaffected, the supply of one important crop
would fall by more than half. Demand for some of the highly
soluble and persistent pesticides, which present the greatest
threat to groundwater quality, would also decrease substantially
(some as much as 50 percent).
NAL Call No.: NALHD101.S6
*****************************************************************
32. Point/nonpoint source trading of pollution abatement:
choosing the right trading ratio.
Malik, A. S.; Letson, D.; Crutchfield, S. R. 

Am-j-agric-econ v.75, p.959-967. (1993).
Includes references.
Descriptors: pollution-control; law-enforcement; costs-;
water-quality; trading-; uncertainty-; mathematical-models;
ratios-; usa-; abatement-costs
Abstract: In programs for trading pollution abatement between
point and nonpoint sources, the trading ratiospecifies the
rate at which nonpoint source abatement can be substituted for
point sourceabatement.  The appropriate value of this ratio is
unclear because of qualitative differencesbetween the two
classes of sources.  To identify the optimal trading ratio, we
develop and analyzea model of point/nonpoint trading.  We find
the optimal trading ratio depends on the relativecosts of
enforcing point versus nonpoint reductions and on the uncertainty
associated with  nonpoint loadings.  The uncertainty does not
imply a lower bound for the optimal trading ratio.
NAL Call No.: NAL280.8-J822
*****************************************************************
33. The potential for water market efficiency when instream flows
have value.
Griffin, R. C.; Hsu, S. H. 

Am-J-Agric-Econ v.75, p.292-303. (1993).
Includes references.
Descriptors: water-allocation; markets-; water-use; efficiency-;
stream-flow; mathematical-models; demand-; right-of-access
Abstract: Most of the effort being expended to revise western
water policy concerns the maintenance of instream waters to the
exclusion of traditional diversionary interests. Absent from the
economics literature is a theoretical treatment addressing the
interface between diversionary and instream water uses. At issue
is the potential for refining market operations to accomplish
efficient allocation in the presence of both diversionary and
instream uses. Optimization methods are employed to examine this
issue in a highly generalized framework. If a specific structure
is adopted, markets and other incentive-based policies are
demonstrated to be capable of efficient water allocation.
NAL Call No.: NAL280.8-J822
*****************************************************************


monday tuesday wednesday thursday friday saturday sunday partyday funday niceday 4A76.1357 4A78.1358 4A79.1359 4A7A.135A 4A81.1361 4A82.1362 4A83.1363 4A84.1364 4A85.1365 4A85.1366 4A85.1367 4A88.1368 4A88.1369 4A88.137A 4A8A.136A 4A91.1371 4A92.1372 4A93.1373 4A94.1374 4A94.1375 4A96.1376 4A97.1377 4A98.1378 4A99.1379 4AA1.1281 4AA2.1282 4AA3.1283 4AA4.1284 4AA5.1285 4AA6.1286 4AA7.1287 4AA8.1288 4AA9.1289 4AAA.128A 5112.2392 5113.2393 5114.2394 5115.2395 5116.2396 5117.2397 5119.2399 511A.2391 511A.239A 5123.24A3 5124.24A4 5125.24A5 5125.24A6 5127.24A7 5128.24A8 5129.24A9 512A.24A1 512A.24A2 512A.24AA 5131.2411 5132.2412 5133.2413 5134.2414 5135.2415 5135.2416 5137.2417 5138.2418 5139.2419 513A.241A 5141.2421 5142.2422 5143.2423 5144.2424 5145.2425 5145.2426 5145.2427 5148.2428 5149.2429 5149.243A 514A.242A 5151.2431 5151.2432 5151.2433 5154.2434 5154.2435 5154.2436 5157.2437 5158.2438 5158.2439 5161.2441 5162.2442 5163.2443 5163.2444 5163.2445 5166.2446 5167.2447 5167.2448 5169.2449 516A.244A 5171.2451 5172.2452 5173.2453 5173.2454 5175.2455 5176.2456 5177.2457 5177.2458 5179.2459 5179.2461 5179.246A 517A.245A 5182.2462 5183.2463 5183.2464 5185.2465 5185.2466 5187.2467 5187.2468 5189.2469 5191.2471 5192.2472 5193.2473 5194.2474 5195.2475 5196.2476 5197.2477 5198.2478 5199.2479 519A.247A 51A1.2381 51A1.2382 51A3.2383 51A3.2384 51A5.2385 51A6.2386 51A7.2387 51A8.2388 51A8.2389 51AA.238A 5212.2492 5213.2493 5213.2494 5215.2495 5215.2496 5217.2497 5218.2498 5219.2499 5219.25AA 521A.2491 521A.249A 5221.25A1 5222.25A2 5223.25A3 5223.25A4 5223.25A5 5226.25A6 5227.25A7 5228.25A8 5229.25A9 5232.2512 5233.2513 5234.2514 5235.2515 5235.2516 5237.2517 5237.2518 5239.2518 523A.2511 523A.251A 5241.2521 5242.2522 5242.2523 5242.2524 5245.2525 5246.2526 5247.2527 5248.2528 5249.2528 524A.252A 5251.2531 5251.2532 5253.2533 5254.2534 5255.2535 5256.2536 5257.2537 5258.2538 5259.2539 5259.254A 525A.253A 5261.2541 5262.2542 5263.2543 5264.2544 5264.2545 5266.2546 5266.2547 5268.2548 5269.2549 5272.2552 5273.2553 5274.2554 5274.2555 5274.2556 5277.2557 5278.2558 5279.2559 527A.2551 527A.255A 5282.2562 5282.2563 5284.2564 5284.2565 5286.2566 5286.2567 5286.2568 5289.2569 528A.2561 528A.256A 5291.2571 5292.2572 5293.2573 5294.2574 5295.2574 5296.2576 5296.2577 5296.2578 5296.2579 529A.257A 52A2.2482 52A3.2483 52A3.2484 52A5.2485 52A5.2486 52A7.2486 52A8.2488 52A9.2488 52AA.2481 52AA.248A 5311.2591 5311.2592 5311.2593 5314.2594 5315.2595 5315.2596 5317.2597 5317.2598 5317.2599 5322.26A1 5322.26A3 5324.26A4 5325.26A5 5325.26A6 5327.26A7 5328.26A8 5329.26A9 532A.26A1 532A.26AA 5331.2611 5332.2612 5332.2613 5332.2614 5335.2615 5335.2616 5337.2617 5338.2618 5338.2619 5338.262A 533A.261A 5341.2621 5342.2622 5342.2623 5344.2624 5345.2625 5345.2626 5347.2627 5347.2628 5347.2629 5352.2632 5353.2633 5354.2634 5355.2635 5356.2636 5357.2637 5358.2638 5358.2639 535A.2631 535A.263A 5362.2642 5363.2643 5364.2644 5365.2645 5366.2645 5366.2647 5366.2648 5366.2649 5366.265A 536A.2641 536A.264A 5371.2651