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That means as Prof Dimson puts it, "that small changes in growth expectation can lead to large changes in share value", which can effect a large number of companies at the same time.

Other parents said their children have been having potty accidents again, speaking in baby talk or gibberish, sleeping in their parents’ bed and throwing tantrums over small changes in routines.

The debate over eliminating the penny isn’t just about small change — it’s about who controls financial transactions and how easily economic access can be revoked.

It taught me that small changes are still changes, that subtle shifts become clearer when you pay attention.

"It's about making small changes to things and trying to help him and improve with the whole team," Murray said.