Macro I - estoques: produção sem vendas

"LONG BEACH, California (Reuters) – From pricey luxury sedans to popular hybrid cars, automobiles made overseas are stacking up at ports and parking lots around the United States as supplies far outstrip demand amid the nation's worst auto market in more than 25 years. At the Long Beach port near Los Angeles, Toyota Motor Corp vehicles including Prius hybrids, FJ Cruiser sport utility vehicles and Lexus IS 250 luxury sedans are being stored on a vast construction site that will one day be a new container terminal..." http://news.yahoo.com/s/nm/20081207/us_nm/us_autos_ports Tarefa: Como este fenomeno se pode modelar na cruz keynesiana?