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This paper evaluates monthly stock index price from the Taiwan stock market for evidence of weak form market efficiency. Four empirical methodologies are employed: the Ljung-Box Q test, the binomial distribution test, the runs test and the unit root test of stationarity in stock prices. Empirical evidence suggests that the monthly stock price for the Taiwan stock market exhibits weak-form efficiency.

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Bailey, D., T.F. Glover, and G. Helms-Government Programs and Adoption of Conservation Tillage Practices on Non-Irrigated Wheat Farms A whole-farm simulation analysis was used to investigate producer preferences for adoption of separate tillage practices {minimum-till, combination-till, or no-till) under provisions of both the 1981 and 1985 Farm Bills. An analysis of preference for participation or nonparticipation in government programs under both farm bills was also considered. For risk averse producers, a combination-tillage practice ,with program participation was found to dominate {as measured by stochastic dominance) the other strategies considered under both the 1981 and 1985 provisions.

Core Ideas Nutrient concentrations are low at Big Creek relative to expected biological‐response thresholds. Nutrient concentrations at Big Creek are typical of streams draining watersheds with similar land use. Flow‐adjusted nutrient concentrations at Big Creek have not increased over the short‐term. Nutrient concentrations in streams increase as watershed land area in pasture and urban uses increases. Nutrient concentrations in several streams of the Boston and Ozark Mountains region of Arkansas, including the Buffalo National River and its tributaries, have garnered tremendous interest. In particular, Big Creek has been the center of attention within the Buffalo River watershed because of a permitted concentrated animal feeding operation (CAFO). The objectives of this paper were to put nutrient concentrations of Big Creek into the context of the stream nutrient and watershed land‐use relationship and develop a framework to evaluate regional land‐use impacts on regional water quality. Nutrient concentrations in streams draining the Boston and Ozark Mountains region were related to the intensity of watershed land use. Concentrations in Big Creek were similar to other watersheds in the ecoregion with similar land use, suggesting limited impact of the CAFO on Big Creek at the present time. However, this does not preclude future impacts, and longer‐term monitoring continues.