Why Index Keeps Rising

Have you ever wondered why the FTSE100 Index (or any other index) has generally shown a more or less continuous rise since it was first instigated? There are many contributory factors: inflation, constant expansion of the larger corporations and long-term investment by large players; but the most important single cause is the simplest and most often overlooked – the creators of the Index want it to show the strongest possible performance and the greatest growth. To this end, every so often they will weed out the poor performers and replace them with up-and-coming strong performers.