文章基本信息

标题：Wagner’s Law Revisited: The Case of Nigerian Agricultural Sector (1961 – 2012)
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作者：Otu William Ibok ; Nsikan Edet Bassey
期刊名称：International Journal of Food and Agricultural Economics
印刷版ISSN：2147-8988
出版年度：2014
卷号：2
期号：3
页码：19-32
出版社：International Journal of Food and Agricultural Economics
摘要：This study examines whether government spending in the Nigerian Agricultural sector has been consistent with Wagner' Law. To test the validity of Wagner's law, six alternative functional forms were adopted, using annual data from the Nigerian agricultural sector over the time period 1961 - 2012. Data was analyzed using cointegration and granger causality test. The result of the Johansen and Juselius cointegration test showed the existence of a long run relationship between various items of agricultural capi tal expenditure as well as agricultural contribution to Gross Domestic Product. The granger causality test result confirmed that Wagner's law holds in the Nigerian agricultural sector. However, there was no clear evidence of government spending causing national income. Hence, the Keynesian proposition of government spending as a policy instrument that encourage and lead growth in the sector is not supported by the data used.
关键词：Public spending; economic growth; Wagner's Law; cointegration; causality