Ramped calibration strips have been suggested as a way for grain producers to determine nitrogen needs more accurately …. The strips use incrementally increasing levels of nitrogen and enable producers to conduct an experiment in each field to … determine nitrogen needs. This study determines whether predictions from the program Ramp Analyzer 1.2 are replicable in …

This paper investigates sensitivity of U.S. natural gas price to crude oil price changes, using time …-varying coefficient models. Identification of the range of variation of the sensitivity of natural gas price to oil price change allows …

the sensitivity of the Phillips curve estimation to some empirical speci�cations. It includes the measures to be used for …

Previous empirical works on municipal efficiency have mostly used cross-sectional data which makes it impossible to … results. We present one of the first longitudinal parametric studies that analyze municipal efficiency and its determinants … using a one step procedure. Furthermore, we are the first of this kind that analize overall efficiency as well as efficiency …

greenhouse effect on efficiency grounds. The model characterises basic transfers, investigate the effect of greenhouse emissions …

2008 is expected among other things to improve the efficiency of the market. This paper therefore investigates the impact … of the automation on the efficiency of the GSE within the framework of the weak-form Efficient Market Hypothesis (EMH … the GARCH models were used to analyze the efficiency of the GSE in the pre and post automation sample periods. Results …

favor of the efficiency wage model. This theory is consistent with the views of many managers and personal administrators …