Fools were out and about this week in an investing world jampacked with actions and ideas. Here are three articles you might find useful as you decide how to invest your money.

Charlie Munger: Get Rid of 80% of the Financial Sector
While contemplating something that Berkshire Hathaway's (NYSE: BRK-B) Charlie Munger had said, Fool contributor Morgan Housel brought this "depressing" statistic to his readers' attention: Financial engineering is the most popular undergraduate major at Princeton's School of Engineering and Applied Science.

Munger had said, "[T]he finance sector of the world should be downsized by at least 80%." For Morgan, "the important point here is not gawking at how much faster the financial sector has grown over other sectors. It's wondering how much faster other sectors would have grown if our best and brightest chose careers in engineering, medicine, or technology instead of derivatives trading."

Read Morgan's article for the full Foolish rundown on what Munger said.

Has Ford Missed Out on China?
Taking a look at the car-buying market in China, Fool contributor John Rosevear ponders whether Ford (NYSE: F) has missed the party.

"Ford's China effort is finally picking up steam, with the company saying that it intends to add 15 new products and double its Chinese workforce by 2015," John wrote. "But there's a problem: China's auto sales growth is slowing."

Check out the article for all of John's insights on Ford and the other automakers.

5 Companies That Should Say "I Do"
Last weekend's royal wedding inspired longtime Fool contributor Rick Munarriz to find five companies he thinks should be getting hitched to other companies.

"These are publicly traded companies that aren't necessarily broken or desperate," Rick wrote. "I just feel that they're at a certain stage where they risk peaking soon if they don't find the right partner to take things to the next level."

Rick sees lots of promise in IMAX (Nasdaq: IMAX), for example, but says its best bet might be a "sugar daddy. … A financially fortified acquirer would be able to expand even more aggressively, while giving IMAX a margin of safety if consumers take a break from super-sized multiplex outings."

Put on your spiffiest hat and head on over to Rick's article for his thoughts on all five stocks, including IMAX, Netflix (Nasdaq: NFLX), and E*TRADE (Nasdaq: ETFC).

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Fool online editor Kris Eddy owns no shares of any stocks mentioned in this article.

Berkshire Hathaway is a Motley Fool Inside Value recommendation. IMAX is a Motley Fool Rule Breakers recommendation. Berkshire Hathaway, Ford, and Netflix are Motley Fool Stock Advisor picks. Alpha Newsletter Account, LLC, has bought puts on Netflix. Motley Fool Options has recommended writing covered calls on GameStop. The Fool owns shares of Berkshire Hathaway, Ford, and GameStop. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.