Whenever the Margin hears the word "tiger" it reaches for the nearest cliche tranquiliser dart gun. But this week, luckily for Professor Stephane Garelli, the safety catch was still on the weapon. Prof Garelli, director of the World Competitiveness Yearbook, is quoted in Decision magazine on the attractiveness of Ireland as a business location.

He also suggests that competitiveness within workplaces has generated three distinct personality types.

The first of these he describes as "tigers"; ambitious, mobile managers typically working more than 60 hours a week and happy to accept promotion to anywhere on the globe.

The second are "cats", who work 40 to 60 hours a week, mobile during the week but like to see their families at weekends.

The third category is made up of "dinosaurs", who toil less than 40 hours a week, want to live and work in the same city, and are not interested in developing their careers.

Had he approached the Margin, Prof Garelli could have been introduced to many more workplace species, such as "goldfish" (works 168-hour week, moves around constantly with mouth open, memory of 71/2 seconds, may be over-fed) and "amoeba" (is physically present around the clock, but incapable of action except at a pace measurable only by microscope).