A fairly open question to end things for the week:
What do you think are the economic effects of Halloween? The more creative (and the less obvious) the better. What markets do you think are most affected by the holiday (positively or negatively)?
To go ahead and take away the most obvious answers, I am sure that candy makers and costume shops have a sharp increase in demand for their products. A more interesting question along those lines though: If the demand for those products is higher during Halloween, why do most grocery stores have sales on candy? Or why don't costume shops increase prices during Halloween (it is my experience that they have sales suring this time as well)?