<prompt> Translate the following text to SwahiliA number of studies suggest that energy efficiency technology investments also tend to increase overall productivity of the economy, especially in the industrial sector.  <response>: Uchunguzi kadhaa unaonyesha kwamba uwekezaji katika teknolojia ya ufanisi wa nishati pia huelekea kuongeza uzalishaji wa jumla wa uchumi, haswa katika sekta ya viwanda. 