Now more than ever, it's crucial to kick it old school and follow the Jim Cramer trading doctrine: "Do your homework."

With no sign of an end to the U.S. and China trade war in sight, how should investors approach this monetary game of battleship?

Sorry, it goes beyond looking for China exposure.

Watch Jim Cramer use the example of Emerson Electric (EMR - Get Report) and McDonald's (MCD - Get Report) in the video above.

Related. Jim Cramer: 7 Sectors You Can Buy as the Trade War Continues

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