Industry accounts for around 13 percent of Madagascar's gross domestic product (GDP) and is largely concentrated in Antananarivo. Key industries include soap production, food and tobacco processing, brewing, textiles, and leather manufacturing, providing employment to around 5.5 percent of the workforce. The city's extensive infrastructure and its role as the economic center of the country make it a favorable location for large businesses. Business owners are drivers of growth for the city; in 2010, 60 percent of all new buildings in the country were located in Antananarivo, most of which were built for commercial purposes. Unemployment and poverty are also growing, fueled in part by an inadequately skilled and unprofessional workforce and the lack of a comprehensive national strategy for economic development since 2009.  Formal sector job growth has not kept pace with population growth, and many residents earn their livelihood in the informal sector as street vendors and laborers.  Under Ravalomanana, construction in the capital increased sharply; twelve new supermarkets were constructed in two years.