Luck

According to studies performed by Richard Wiseman, lucky people tend to be open to new experiences, which leads to a wider range of opportunities. Unlucky people tend to be rigid in their thoughts and habits and often have very specific ideas when searching for what they want, which leads to a reduction of opportunities. Essentially, lucky people see the world with few preconceived notions and assumptions while unlucky people see what they want to see in the world that confirms their notions of the world.  Wiseman also mentions that lucky people tend to listen to their intuition and consider how they will feel if they pursued a certain option while unlucky people tend to dismiss their intuition and just look at the rational side of options.

Keeping an open mind allows one to become more adaptable by providing one with more opportunities, which leads to more good luck. Being rigid-minded makes one less adaptable by causing them to overlook other opportunities, which leads to more  bad luck. If I am intent on buying a pre-WWII 3 bedroom 2 bath single family house for under $300,000, yet most 3/2 houses sell at $500,000 and very few pre-WWII houses even exists in the area I am looking, I am setting myself up for disappointment or bad luck, as my chances of finding that one house that fits my criteria is low. However, if I am willing to buy  a place with fewer rooms  and/or something built after 1950, I will be more likely to fulfill my criteria and thus be more lucky.