For a time, much confusion was created because the various economists working on this model independently failed to realize that they were saying much the same thing.
ही वस्तुस्थिती काही वेळा खूप अनर्थ निर्माण करू शकते, त्याचे कारण एकमेकांशी बोलणार्या दोन्ही माणसांना त्या वस्तुस्थितीची सुतराम कल्पना नसते.