Increasing the price of a product, launching a new marketing campaign, and expanding into new markets are actions that can lead to an increase in revenue for a company.
The question asks which actions would result in an increase in revenue for a company. Increasing the price of a product can lead to an increase in revenue if the demand for the product is relatively inelastic, meaning consumers would continue buying nearly the same amount despite the price hike.
Decreasing the cost of production, such as through technological improvements, can also enhance profitability, but this directly affects costs rather than revenues. Launching a new marketing campaign might boost revenue by increasing the demand for the product if the campaign successfully attracts more customers or convinces existing customers to purchase more.
Expanding into new markets can also increase revenue by opening up new sales channels and reaching additional consumers. Therefore, actions 1, 3, and 4 are directly related to increasing revenue.