What is the "Wal-Mart Effect"?

The Walmart Effect is a term used to refer to the economic impact felt by local businesses when a large company like Walmart (WMT) opens a location in the area. The Walmart Effect usually manifests itself by forcing smaller retail firms out of business and reducing wages for competitors' employees.

or in book way:

The Wal-Mart Effect is a 2006 book by business journalist Charles Fishman, a senior editor at Fast Company magazine, which describes local and global economic effects attributable to the retail chain Walmart.  

here are some events that to cause increased conflict between the north and south

1) mexican cession- gaining modern day california, utah, arizona, and new mexico from mexico. caused southern and northern politicians to fight over whether or not there would be slavery in these newly acquired territories.

2) uncle tom's cabin- this famous book described the cruelty of slavery in the south during the antebellum period, causing more northerners to support abolition and southerners to resent the book as they felt it unfairly depicted southern society.

3) kansas- nebraska act- disagreements over whether or not kansas and nebraska would be free or slave states caused issues between northern and southern politicians in congress.

4) bleeding kansas- this fighting took place in kansas after congress allowed this territory to vote on whether or not they would have slavery. citizens were killed and buildings were destroyed during this fighting.

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)