-germination models in predicting germination-time under constant-temperature conditions. Of specific interest was the assessment of shape …-shape assumptions. All models were relatively accurate in the sub-optimal temperature range except in the 3 °C treatment where predicted … germination times were in error by as much as 70 d for the cardinal-temperature models. CONCLUSIONS: Germination model selection …

′s terms of trade. The analysis uses both discrete and smooth‐switching techniques for estimating disequilibrium models. The …

, however, there has been growing recognition that regression models will be subject to aggregation bias if they fail to …