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中国经济出现滞胀的可能性分析
摘 要:滞胀这个名词过去从未出现在中国国民经济运行的描述中,现在却越来越频繁地被
提及。本文先利用美国上个世纪七八十年代的数据特征结合图形分析如何判断经济运行处于
滞胀状态,再利用近几年中国经济的运行数据讨论中国出现滞胀的可能性。最后结合现在中
国经济内部运行的实际状况和外部环境的变化趋势得出潜在滞胀威胁的存在原因,给出如何
应对滞胀的一些政策建议。
关键词:滞胀;CPI;GDP;失业率
1. 引言
滞胀全称停滞性通货膨胀(Stagflation),从这个词的构成上就可以看出,滞胀指的是经济
停滞(Stagnation)(或低速增长)与高通货膨胀(Inflation),失业以及不景气同时存在的经济现
象。通俗的说就是指物价上升,但经济停滞不前。历史上最典型的滞胀阶段,发生在 1973-1982
年的美国。这场危机源于上世纪 70年代以来美国的结构性经济失衡,其间,美国的通胀率
长期在 5%以上的高位徘徊,并一度攀升至 10%以上,而经济增长则在 74、75、80、82 等
年份陷入衰退,其余年份也仅仅是低速缓慢增长。
2. 数据分析
美国数据分析
在美国上世纪七十年代的滞胀中,明显的显现出一种“先滞后胀”的状态。当时西方国家
的经济发展普遍进入了停滞阶段,政府为了刺激有效需求,不断扩大财政支出,造成货币供
应量增长过快,超过了国民经济增长速度。再加上 70年代石油价格飞涨,导致物价持续上
涨。以下将使用宏观经济数据分析,更直观的表现滞胀阶段的某些特征。
下面的两张图显示了美国的失业率,GDP 增长率已及通货膨胀率之间的关系。在图中
可以明显的看出,三者的变化方向基本一致,而在滞胀阶段,也就是 1973-1982年间,通货
膨胀率高于 GDP增长率,失业率也明显高于正常年份,并在 1982年创下 %的峰值。
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图 1:1950年至今美国 CPI、GDP增长率和失业率 ]1[
图 2:1970至 1990年间美国 CPI、GDP增长率和失业率 ]1[
下面定义名义 GDP与 CPI增速之差为“滞胀”指标。即 G-I=GDP-Inflation
(括号表示负值)
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表 1:1970年至 1983年美国 GDP增长率、通货膨胀率及“滞胀”指标值
表 1是美国 1970-1983年的 GDP和通货膨胀具体数值,以及所计算出来的滞胀指标值。
结合图 2可以看出,当 G-I指标开始出现负值并不断扩大时,即可判断经济运行进入滞胀阶
段。滞胀最严重的年份分别是 1974年以及 1979、1980年,但是失业率指标在上述年份并非
最高。美国的这次滞胀在图形上形成了一个双峰,虽然经济陷入停滞,但名义 GDP的增速
仍处于高位,所以定义增速差值的指标是合理的。
中国数据分析
接下来研究中国发生滞胀的条件及可能性。尽管中国的国情以及经济发展模式与美国有
很大差异,但是上述指标仍然适用。表 2最后一栏显示的就是 2002年至 2006年中国的 G-I
指标的值,也就是在本轮通货膨胀启动前的指标值。应该说,02年—06年的 CPI值是偏低
的,G-I的值也都较大,实际上这种现象也是不正常的。
表 2:2002至 2006年中国 GDP、CPI增长率及“滞胀”指标值
YEAR GDP(100%) CPI(100%) G-I(100%)
2002
2003
2004
2005
2006
表 3 则是 2007 年四个季度以及 2008 年一季度的数据。可以看到,长期在低位徘徊的
CPI增长率从 07年上半年开始突然翻倍,到下半年再次翻倍,最终全年的 CPI增速是 %。
而根据今年一季度数据,CPI已经创下近十几年来的最大增速,达到 8%。GDP的增速则在
2007年达到一个阶段性的顶峰,今年已经所回落。
YEAR GDP(100%) Inflation(100%) G-I (100%)
1970 ()
1971
1972
1973 ()
1974 ()
1975
1976
1977 ()
1978 ()
1979 ()
1980 ()
1981 ()
1982 ()
1983
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表 3:2007年第一季度至 2008年第一季度中国 GDP、CPI增长率及“滞胀”指标值
QUARTER GDP(100%) CPI(100%) G-I(100%)
200701
200702
200703
200704
200801 8
从数据上来看,我国目前并没有满足滞胀的条件也就是 G-I<0并不断扩大,但是,该指
标从 06 年的最大值 降到目前的 ,短短一年的时间,下降的速度非常快,更进一步
讲,是 CPI 上升的速度很快。据有关人士预计,今年二季度 CPI 增速可能会放缓,但是下
半年的情势目前仍不明朗,全年 CPI高位运行的可能性很大。而 GDP预计全年的增速将回
落至 %,特别值得注意的是,我国要在今年 8、9 月份举办奥运会和残奥会,根据以往
经验,奥运会后短期内,一国经济增长将会减速,因此,四季度 GDP 增长率降到 8%—9%
之间可能性不小。一旦四季度 CPI增速超过 8%,而 GDP受奥运后遗症影响降至 9%以下时,
滞胀的压力一下子就将呈现在所有人面前。
再来看滞胀的另一个指标失业率。在我国由于没有一个科学完整的统计方法,目前很难
判断具体的失业率是多少,但是许多资料以及国外媒体,本国调查员亲身体会显示,真实的
城镇失业率应该在 10%左右,这已经超过了美国当时的最高水平,表明我国目前劳动力就
业情况相当严峻。
3. 结论及政策
滞胀的危险信号不仅仅从数据上反映出来,我国今年宏观经济运行也存在着隐忧。一方
面,国内的经济结构不合理,我国 GDP 的增长主要靠投资拉动,而非消费。前几年 GDP
高速增长中被忽视的过度投资的现象在今年已经有所显现,某些行业严重的供大于求,造成
仓库库存积压,周转困难,企业再投资步伐减慢。另一方面,全球经济增长放缓,特别是次
债危机后美国经济陷入轻度衰退,给我国带来不小冲击。再加上人民币对美元的大幅升值,
目前已经进入“6”时代,导致我国出口增长下降,而进口动力进一步增强,今年一季度数据
显示,我国出口 3059亿美元,增长 %,低于去年同期 个百分点;进口 亿美
元,增长 %,高出去年同期 个百分点。累计贸易顺差 亿美元,比去年同期下
降 %,净减少 亿美元。贸易状况的恶化以及人民币的不断升值不仅使得外汇储备
缩水,更对国内出口企业造成巨大打击,特别是像纺织业这种倚赖出口的劳动密集型产业,
又进一步造成大量职工下岗,失业率上升。实际上,中国当前对外贸易依存度已经超过 60%,
美国也不过 %,这样的比例是相当危险的,一旦全球经济在今年陷入困境,我国也将不
可避免的被拖累。
与此同时,物价上涨的压力丝毫没有减轻。前期国际油价曾达到每桶 140美元的历史高
位,这与 70年代的情况相似。高企的油价提高了运输成本,容易引起各类商品物价的普遍
上涨。全球范围内的粮价上涨也给我国的粮食供应以及粮价控制带来了很大压力。在这种输
入性的通胀和国内目前存在的结构性通胀的共同作用下,想要压制住 CPI的增速恐怕也是很
难做到。 ]2[
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那么,一旦滞胀真的到来,应该如何应对?这是一个难题,因为历史上并没有什么好的
经验值得借鉴。美国走出上世纪 70年代滞胀的途径,是利用它的特殊世界地位发动了一场
越战,转移国内的注意力以及经济压力。显然,中国不可能走和美国一样的道路。 ]3[ 尽管
政府今年经济工作的重心放在了稳定物价上,但是我认为加快产业结构的调整,防止经济陷
入“滞”的境地似乎更加可行也更加有效一些。应该相信,我国目前发展的整体势头仍然是良
好的,只要能够运用好国家的群体智慧,滞胀也许会和我们渐行渐远。
参考文献
[1]. Ivan O. Kitov.“Inflation, unemployment, labor force change in the USA”,
[2].徐寒飞.“美国经济可能在四季度出现复苏”,中国证券报.中证网,2008 年3月14日:P1-P1.
[3].周阳.“‘滞胀’危险逼近”,《经济》,2005年1月期:P64-P66.
The possibility analysis of China facing Stagflation
Su Jingwen
the School of Economics and Management,the department of finance, Southeast University
(211189)
Abstract
The word “stagflation” has never showed up when describing the economical situation of China, but
now it is referred to more and more frequently. This paper first analyses how to judge the economical
operation is in a stagflation, by using the data characteristics and graph of the seventies and eighties of
the last century in the USA. Then it discusses the possibility that China will have a stagflation in the
future by using the data of Chinese economical operation these years. Finally, it combines the actual
state inside Chinese economical operation with the environment trend outside now to arrive at the
reason why there is an underlying threat of stagflation, and gives some advise to face the stagflation.
Keywords: stagflation; CPI; GDP; unemployment rate
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/NOR <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>
/SVE <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>
>>
>> setdistillerparams
<<
/HWResolution [2400 2400]
/PageSize [ ]
>> setpagedevice