Final answer:
Companies in the international marketplace must consider cultural differences, economic fluctuations, and technological advancements but not domestic regulations of other countries.
Step-by-step explanation:
Companies operating in an international marketplace need to respond to a variety of challenges and changes, including cultural differences, economic fluctuations, and technological advancements. However, they do not necessarily have to respond to domestic regulations of countries where they are not based, as these do not apply outside the jurisdiction of the country in question. The forces of globalization and new communications and information technology have particularly increased the level of competition among firms by broadening the marketplace beyond local and national borders.