Here are the results as of 3 pm today for our productivity poll. I was surprised to see that "Time slicing and multi-tasking" was far and away the most popular response!
... your findings that 'average productivity increases with project size' might raise a few eyebrows, but the ISBSG data produces the same finding. Of course we only have data on projects that were completed. I wonder about the incidence of abandonment of large projects.