Which of the following is considered an economic crime in Missouri?

In Missouri, economic crimes encompass activities that directly involve financial gain or loss, typically through deceitful practices. Theft and fraud fall squarely within this category because they involve the unlawful taking of someone else's property or the act of deceiving someone for financial advantage. Theft involves taking someone else's belongings without consent, while fraud can include various schemes, such as false representation or manipulation designed to unlawfully acquire money or assets.

Assault, public intoxication, and stalking are not classified as economic crimes, as they primarily involve violence, public order offenses, and personal harm rather than economic transactions or financial implications. Thus, theft or fraud clearly aligns with the definition of economic crimes in Missouri, making it the correct answer in this context.