Previous research has defined aggregate pesticide expenditures as the control variable; however, virtually all managerial recommendations and environmental restrictions target specific pesticides, rates, and crops. A bioeconomic approach considering particular pesticides on specific pests and...

This paper presents a new method for sensory evaluation of industrial products with uncertain information. In this approach, sensory data provided by different evaluators are transformed into measures of consistency on fuzzy satisfaction degrees. Based on these measures of consistency, we obtain...

This article develops a measure of efficiency to use with aggregated data. Unlike the most commonly used efficiency measures, our estimator adjusts for the heteroskedasticity created by aggregation. Our estimator is compared to estimators currently used to measure school efficiency. Theoretical...

Many series are subject to data irregularities such as missing values, outliers, structural breaks and irregular spacing. Data can also be messy, and hence difficult to handle by standard procedures, when they are intrinsically non-Gaussian or contain complicated periodic patterns because they...

This paper provides a theoretical explanation for the inconsistent findings from previous econometric analyses of aggregated data concerning the duration of advertising carryover. Using this theoretical explanation and the knowledge of a data interval bias, the paper reviews and summarizes the...

This article details how survey evidence of aggregate planning practice can be modelled to develop a functional objective search (FOS) system which incorporates the strategies and multiple objectives of the aggregate planning problem. The system is structured to be interactive in use and capable...

Most commercial organisations have the hardware and software to gather and process as much, if not more, information than they can use. If the amount of information is not controlled it can lead to increases in its cost. The nature of the cost of information is considered and a model proposed...