<prompt> Translate the following text to EnglishKituo cha Makubaliano ya Mipango na Mipango ya Sera Center for Budget and Policy Priorities kinachotangaza Mipango ya Mipango na Mipango ya Mipango Analysis of Poverty and Income Data, 1998 ni kituo cha utafiti wa uchumi na uchumi.  <response>: 12 Center for Budget and Policy Priorities, Analysis of 1998 Poverty and Income Data, September 1999. 