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) -- If you don't want to get hurt,

invest domestically

, Jim Cramer advised on 

Mad Money

 Thursday. Cramer said while today's rally stemmed from positive actions in Europe, many of the wrong stocks rallied on the news and will be heading lower very soon.

Cramer explained that everyone wants a stronger Europe, and today's news of more European stimulus was enough to send the entire market higher. But a stronger Europe also means a weaker euro in the short term, and that will only hurt international companies even more.

The phrase "currency headwinds" has been popping up a lot on this quarter's conference calls, Cramer noted, and a strong dollar and weak euro were enough to send American Express (AXP) - Get Reportdown 3.7% today, and many more companies will soon follow. Cramer said investors need to lighten up on stocks such as IBM (IBM) - Get Report and Johnson & Johnson (JNJ) - Get Report  with their large international exposure.

On the flip side, there are plenty of terrific domestic stocks to invest in, said Cramer. These include Unitedhealth Group (UNH) - Get Report , Southwest Airlines (LUV) - Get Report and KeyCorp (KEY) - Get Report , which rallied 7% on the day.

"Don't outthink it," Cramer concluded. Invest domestically. Fortunately, there are a lot of stocks from which to choose.

Executive Decision: Michael Kneeland

For his "Executive Decision" segment, Cramer spoke with Michael Kneeland, president and CEO of United Rentals (URI) - Get Report , a stock that has fallen over 24% over the past six months as investors fret over the company's exposure to equipment rentals to the oil and gas industry. United Rentals just posted a 12-cents-a-share earnings beat, proving those skeptics wrong.

Kneeland noted that only 6% of United's revenue are tied to the oil and gas industry. Meanwhile, the decline in oil prices has been such a boon to the rest of the economy, from housing to construction to chemicals, that it has more than made up for any oil and gas weakness.

When asked about his business, Kneeland said he continues to see offshore investments being made here in the U.S., especially in the chemical and automotive sectors. He also reiterated that when it comes to equipment, it's always cheaper to rent than it is to buy, maintain, insure and transport your own.

Kneeland also said United is always looking to make additional investments in its business and is always considering additional stock buyback programs.

Cramer said the markets have simply gotten this stock wrong and investors need to get in there and buy some.

Executive Decision: Dinesh Paliwal

In his second "Executive Decision" segment, Cramer sat down with Dinesh Paliwal, chairman, president and CEO of Harman International (HAR) , the auto infotainment and speaker maker that just made two big acquisitions, giving it an even bigger footprint in the automotive technology world.

Paliwal explained that Harman's acquisition of Red Bend Software is all about cyber security for the next-generation, cloud-connected cars. He explained that Red Bend's technology allows for over-the-air updates of apps and firmware and also provides security to keep out hackers and viruses.

Meanwhile, Harman's acquisition of Symphony Teleca gives the company access to many of the back-end systems that will be needed to support auto-based cloud services.

Paliwal said Harman is also in talks with musician Neil Young's Pono Music to bring high-def audio services to cars.

Cramer continued to show his support for all that Harman is bringing to our mobile lives.

Executive Decision: T.J. Rodgers

In a third "Executive Decision" segment, Cramer spoke to T.J. Rodgers, president and CEO of Cypress Semiconductor (CY) - Get Report , a stock that currently yields 3.1% and is up 40% since Cramer last checked in this past June. Cramer called Cypress his favorite semiconductor company for 2015.

Rodgers commented on Cypress' acquisition of Spanion, a deal which is on track to close later this year. He said not only will the deal offer $135 million in synergies over the first three years but it is a "one plus one equals three" combination as Cypress will be able to sell more types of memory and chips into more companies than it could individually.

Rodgers was also bullish on the "Internet of things," which requires a lot more of Cypress' programmable system-on-a-chip modules to sense information, process it and then send it to the cloud. He also noted that many of the newest technologies in this space are coming from startups, an area on which Cypress focuses hard.

Cramer reiterated that Cypress is a "breakout situation" and one that investors need to buy.

Lightning Round

In the Lightning Round, Cramer was bullish on Anheuser-Busch InBev (BUD) - Get Report , Constellation Brands (STZ) - Get Report , The Blackstone Group (BX) - Get Report , Union Pacific (UNP) - Get Report , Altria (MO) - Get Report , Flextronics (FLEX) - Get Report , Bristol-Myers Squibb (BMY) - Get Report and Genpact (G) - Get Report .

Cramer was bearish on CSX (CSX) - Get Report and MannKind (MNKD) - Get Report .

Executive Decision: Beth Mooney

In a fourth "Executive Decision" segment, Cramer spoke with Beth Mooney, chairman, president and CEO of KeyCorp, which today delivered a 2-cents-a-share earnings beat, news that sent shares soaring 7.6%.

Mooney said Key had a strong close to its 2014 fiscal year and it has lots of momentum going into 2015. She agreed with Cramer that growth is now a better metric to look at when comparing banks than using just net interest margins.

When asked about the competitive landscape, Mooney noted that mergers and acquisitions remain slow but geographic diversity has always been a strength of Key and the company continues to look at expansion opportunities.

Finally, when asked about the oil and gas industry in the shale regions that Key serves, Mooney noted that so far production has not slowed but she has seen future investments starting to be curtailed. The question, she said, is "how low and for how long" oil prices will go.

Cramer said KeyCorp continues to lead among the regional banks.

To watch replays of Cramer's video segments, visit the Mad Money page on CNBC.

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-- Written by Scott Rutt in Washington, D.C.

To email Scott about this article, click here: Scott Rutt

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At the time of publication, Cramer's Action Alerts PLUS had a position in JNJ.