Aggregate

An aggregate is a collection of items that are gathered together to form a total quantity.

Khan Academy

Khan Academy is a non-profit educational organization created in 2006 by educator Salman Khan with the aim of providing a free, world-class education for anyone, anywhere. The organization produces short lectures in the form of YouTube videos. In addition to micro lectures, the organization's website features practice exercises and tools for educators. All resources are available for free to anyone around the world. The main language of the website is English, but the content is also available in other languages.

History

The founder of the organization, Salman Khan, was born in New Orleans, Louisiana, United States to immigrant parents from Bangladesh and India. After earning three degrees from the Massachusetts Institute of Technology (a BS in mathematics, a BS in electrical engineering and computer science, and an MEng in electrical engineering and computer science), he pursued an MBA from Harvard Business School.

In late 2004, Khan began tutoring his cousin Nadia who needed help with math using Yahoo!'s Doodle notepad.When other relatives and friends sought similar help, he decided that it would be more practical to distribute the tutorials on YouTube. The videos' popularity and the testimonials of appreciative students prompted Khan to quit his job in finance as a hedge fund analyst at Connective Capital Management in 2009, and focus on the tutorials (then released under the moniker "Khan Academy") full-time.

Bare Essentials

Bare Essentials is a 1991 television film starring Gregory Harrison, Mark Linn-Baker and Lisa Hartman. It was directed by Martha Coolidge and written by Allen Estrin and Mark Estrin.

Plot

Gordon (Linn-Baker) and Sydney (Hartman) are both hard working over stressed and engaged and decide to take a short cruise. However, they end up getting lost and stranded on an island named Luhana. While there they meet an American named Bill (Harrison) who has lived on the island for 3 years and also owns it. Eventually Sydney starts to fall for Bill. They take walks together and swim in the ocean. They wind up having sex under water. Meanwhile, Gordon's laid up since hurting his back after chopping down a palm tree to make a boat out of. Gordon meets Tiana who turns out to be Bill's girlfriend. When Sydney finds out she's furious. The two couples end up playing Monopoly like they're at war. Gordon is falling for Tiana, who gave him a massage earlier which cured his back. Eventually the couples switch partners for the better. But then Sydney finds out that Bill has been hiding on the island because he's wanted for insider trading. She decides to turn him in to the police who eventually show up to rescue her and Gordon. She then decides not to, as she's grown very fond of him. She and Gordon start to head back home, but Gordon then jumps ship and swims back to Tiana. Sydney returns to New York, but realizes she misses Bill. She gets on a ferry to take her back to the island. Bill surprises her by showing up on the ferry, clean shaven and wearing a suit, to return to his old life in the city. He tells her he was framed and that his case has been settled. Gordon now owns Luhana. Sydney and Bill kiss as the movie ends.

Aggregate demand

In macroeconomics, aggregate demand (AD) or domestic final demand (DFD) is the total demand for final goods and services in an economy at a given time. It specifies the amounts of goods and services that will be purchased at all possible price levels. This is the demand for the gross domestic product of a country. It is often called effective demand, though at other times this term is distinguished.

The aggregate demand curve is plotted with real output on the horizontal axis and the price level on the vertical axis. It is downward sloping as a result of three distinct effects: Pigou's wealth effect, Keynes' interest rate effect and the Mundell-Fleming exchange-rate effect. The Pigou effect states that a higher price level implies lower real wealth and therefore lower consumption spending, giving a lower quantity of goods demanded in the aggregate. The Keynes effect states that a higher price level implies a lower real money supply and therefore higher interest rates resulting from financial market equilibrium, in turn resulting in lower investment spending on new physical capital and hence a lower quantity of goods being demanded in the aggregate.