It was expanded to slow more traffic for boats and larger boats its also knows has the third lock project . yes this was literally its main purpose <span />
The power of government to regulate is sometimes referred to as jurisdiction.
I think The answer is supply and demand.
Advertising simply will observe what is currently available and needed by the markets and promote their product in such a way that makes people believe their products is what they needed to answer their problems. By doing this, the advertisers will obtain market share that they can turn into profit for their company.