die erwirtschafteten Überschüsse auf Lohndeflation basierend. M. Pettis hat einen guten Post hierzu.
Zunächst Pettis zum Unterschied Privathaushalt versus Staatshaushalt:
The difference between household and national savings matters because of the impact of national savings on a country’s current account, as I discuss in a recent piece in Foreign Policy. In it I argue that we often and mistakenly think of nations as if they were simply very large households. Because we know that the more a household saves out of current income, the better prepared it is for the future and the more likely to get rich, we assume the same must be true for a country.
But countries are not households. What a country needs to get wealthier is not more savings but rather more productive investment. Domestic savings matter, of course, but only because they are one of the ways, and probably the safest, to fund domestic investment (although perhaps because they are the safest, investment funded by domestic savings can also be misallocated for much longer periods of time than investment funded by external financing).
Deutschland als die Exportmacht und noch dazu dominant in der EU musste also dieses Surplus investieren, denn
In an open economy, if a country saves more than it invests it must export the excess savings. It must also export the excess production.
Dieses führt in einem Wirtschaftsraum wie der EU zu Distorsionen und Ungleichgewicht:
In the late 19th Century, as I discuss in my most recent book, economists like John Hobson in the UK and Charles Arthur Conant in the US noticed that the rich countries of the west were exporting large amounts of savings abroad – mostly to what were later called by the dependencia theorists of the 1960s the peripheral nations. Hobson and Conant argued that the reason for this excess savings had to do with income inequality. As more and more wealth is concentrated into the hands of fewer people, consumption rises more slowly than production, largely because the wealthier a person gets, the smaller the share he consumes out of his income. Notice that because savings is simply total production of goods and services minus total consumption, this forces up the national savings rate.
This was a very important insight. Excess savings, they pointed out, was not a result of old-fashioned thrift but rather a consequence of structural distortions in the economy. The consequence of this “thrift”, furthermore, was not greater wealth but rather structural imbalances in the global economy.
Die Entwicklung in Deutschland beschreibt Pettis so:
In the 1990s Germany could be described as saving too little. It often ran current account deficits during the decade, which means that the country imported capital to fund domestic investment. A country’s current account deficit is simply the difference between how much it invests and how much it saves, and Germans in the 1990s did not always save enough to fund local investment.
But this changed in the first years of the last decade. An agreement among labor unions, businesses and the government to restrain wage growth in Germany (which dropped from 3.2 percent in the decade before 2000 to 1.1 percent in the decade after) caused the household income share of GDP to drop and, with it, the household consumption share. Because the relative decline in German household consumption powered a relative decline in overall German consumption, German saving rates automatically rose.
Notice that German savings rate did not rise because German households decided that they should prepare for a difficult future in the eurozone by saving more. German household preferences had almost nothing to do with it. The German savings rate rose because policies aimed at restraining wage growth and generating employment at home reduced household consumption as a share of GDP.
As national saving soared, the German economy shifted from not having enough savings to cover domestic investment needs to having, after 2001, such high savings that not only could it finance all of its domestic investment needs but it had to invest abroad by exporting large and growing amounts of savings. As it did so its current account surplus soared, to 7.5 percent of GDP in 2007. Martin Wolf, in an excellent Financial Times article on Wednesday on the subject, points out that
between 2000 and 2007, Germany’s current account balance moved from a deficit of 1.7 per cent of gross domestic product to a surplus of 7.5 per cent. Meanwhile, offsetting deficits emerged elsewhere in the eurozone. By 2007, the current account deficit was 15 per cent of GDP in Greece, 10 per cent in Portugal and Spain, and 5 per cent in Ireland.
Employment policies and the savings rate
It is tempting to interpret Germany’s actions as the kind of far-sighted and prudent actions that every country should have followed in order to keep growth rates high and workers employed, but it turns out that these policies did not solve unemployment pressures in Europe, and this is implied in the second sentence of Martin Wolf’s piece. Germany merely shifted unemployment from Germany to elsewhere. How? Because Germany’s export of surplus savings was simply the flip side of policies that forced the country into running a current account surplus.
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