经济研究
經濟研究
경제연구
Economic Research Journal
2014年
3期
88~100
,共null页
财政风险 波动率 条件异方差模型
財政風險 波動率 條件異方差模型
재정풍험 파동솔 조건이방차모형
Fiscal Uncertainty ; Volatility ; GARCH-in-Mean Model
作为宏观调控的重要手段,财政收支变动及其风险是政府调控经济时关心的重要问题。利用月度财政收支的时间序列数据,本文建立了财政收支增长率和波动率的均值条件异方差(GARCH—in—Mean)模型,考察了财政收支波动风险对财政收支的影响。研究发现:(1)在增长率之间的关系上,财政支出增长推动财政收入增长,而财政收入的增长没有显著地促进财政支出的增长;(2)财政收支的风险对财政收支增长率的交叉影响是不对称的,财政支出风险促进财政收入增长,但财政收入风险抑制财政支出增长;(3)随机冲击对财政收支的影响持续时间较长,大约在9个月之后开始平复,并在27—40个月后才衰减完毕,而财政收支的波动率对随机冲击的反应很快,大约4个月时间就充分吸收了冲击的影响。
作為宏觀調控的重要手段,財政收支變動及其風險是政府調控經濟時關心的重要問題。利用月度財政收支的時間序列數據,本文建立瞭財政收支增長率和波動率的均值條件異方差(GARCH—in—Mean)模型,攷察瞭財政收支波動風險對財政收支的影響。研究髮現:(1)在增長率之間的關繫上,財政支齣增長推動財政收入增長,而財政收入的增長沒有顯著地促進財政支齣的增長;(2)財政收支的風險對財政收支增長率的交扠影響是不對稱的,財政支齣風險促進財政收入增長,但財政收入風險抑製財政支齣增長;(3)隨機遲擊對財政收支的影響持續時間較長,大約在9箇月之後開始平複,併在27—40箇月後纔衰減完畢,而財政收支的波動率對隨機遲擊的反應很快,大約4箇月時間就充分吸收瞭遲擊的影響。
작위굉관조공적중요수단,재정수지변동급기풍험시정부조공경제시관심적중요문제。이용월도재정수지적시간서렬수거,본문건립료재정수지증장솔화파동솔적균치조건이방차(GARCH—in—Mean)모형,고찰료재정수지파동풍험대재정수지적영향。연구발현:(1)재증장솔지간적관계상,재정지출증장추동재정수입증장,이재정수입적증장몰유현저지촉진재정지출적증장;(2)재정수지적풍험대재정수지증장솔적교차영향시불대칭적,재정지출풍험촉진재정수입증장,단재정수입풍험억제재정지출증장;(3)수궤충격대재정수지적영향지속시간교장,대약재9개월지후개시평복,병재27—40개월후재쇠감완필,이재정수지적파동솔대수궤충격적반응흔쾌,대약4개월시간취충분흡수료충격적영향。
What is the effect of the fiscal uncertainty on government revenue and expenditure? Using the monthly time series data of government revenue and expenditure, we build a GARCH-in-Mean model to test the effect of uncertainty. Our results show that the fiscal uncertainty has an asymmetric effect. First, government expenditure growth stimulates government revenue growth, but revenue growth has little effect on expenditure growth. Secondly, government expenditure volatility resuhs in an increase in government revenue, but revenue volatility constraints expenditure growth. Lastly, government revenue and expenditure have persistent responses to shocks of revenue and expenditure growth; however, responses of their volatilities are much shorter to random shocks.