<prompt> Translate the following text to EnglishUchumi ambao haufunguki kwa biashara ya kimataifa na uwekezaji lazima utegeme tu akiba yake mwenyewe ili kutoa rasilimali za kuwekeza katika kiwanda, vifaa, na aina nyingine za mtaji.  <response>: 3. An economy that is not open to international trade and investment must rely solely on its own saving to provide the resources to invest in plant, equipment, and other forms of capital. 