Germany is the fourth-largest economy in the world (after the US, China, and Japan). And it's economy is doing extremely well. For example, consider the conclusion of the IMF staff in "Germany: Staff Concluding Statement of the 2018 Article IV Mission" (May 14, 2018):
"Germany’s economic performance is impressive, supported by prudent economic management and past structural reforms. Growth is robust. The unemployment rate has fallen to levels not seen in decades and employment is rising. Household and corporate balance sheets are strong and the public debt ratio is declining rapidly. Inflation remains low but wage growth is picking up, reflecting the strength of the labor market."
For a more detailed overview from the IMF, see "Germany : 2017 Article IV Consultation-Press Release; Staff Report; and Statement by the Executive Director for Germany (July 7, 2017). Sure, the IMF expresses concerns about how Germany's economy will adapt to an aging population, how it can encourage greater business investment and reduce its gargantuan trade surpluses over time. But these problems, like most economic problems, are a lot easier to address in the context of an economy with solid growth, low unemployment, and declining debt levels.
So what are the roots of Germany's strong economic performance? Are there some lessons for other countries? Are there reasons for concern? Dalia Marin has edited a useful e-book, Explaining Germany’s Exceptional Recovery with a group of 10 readable essays looking at various aspects of German economic experience (May 2018, published by the Centre for Economic Policy Research, available from the Vox.eu website with free registration).
There's no one magic answer, of course. One set of arguments emphasize that Germany reformed it labor institutions in the late 1990s and intoe the early 2000s in a way that led to greater flexibility and a drop in labor costs (defined here not as an outright fall in wages, but as greater productivity for the cost of a unit of labor). This flexibility in Germany's labor market was combined with an willingness to reach across national boundaries and to build international production chains with nations of eastern Europe, so that German production could focus on higher value-added tasks. Marin describes one of the essays along these line in the intro:
Christian Dustmann, Bernd Fitzenberger, Uta Schoenberg, and Alexandra Spitz-Oener argue that the transformation of the German economy was due to an unprecedented process of decentralisation of wage bargaining to the firm level that led to a dramatic decline in unit labour costs, and ultimately to an increase in competitiveness of the German economy. Wage decentralisation was made possible, they claim, by the specific governance structure and autonomy of the German labour market, not rooted in legislation but laid out in contracts and mutual agreements between employer associations, work councils, and trade unions. This decentralisation of the wage-setting process was driven by a sharp decline in the share of workers covered by union agreements and an increase in opening clauses that strengthened the role of firm-based work councils in wage determination relative to trade unions. The decline in union coverage and the increase in opening clauses, in turn, were both triggered by a more competitive global environment. In particular, the new opportunities to move production to the emerging market economies of Eastern Europe changed the power equilibrium between trade unions and employer federations and forced unions and work councils to accept deviations from industry-wide agreements.
Here's a figure from their paper, showing how "unit" labor costs in Germany have fallen over time, compared to a number of competitors.
[The Dustman et al. paper in this volume is a condensed version of their paper in the Winter 2014 issue of the Journal of Economic Perspectives, available at Christian Dustmann, Bernd Fitzenberger, Uta Schönberg, and Alexandra Spitz-Oener. 2014. "From Sick Man of Europe to Economic Superstar: Germany's Resurgent Economy." Journal of Economic Perspectives, 28 (1): 167-88.]
Other essays explain how this shift in Germany's labor markets, together with the rise of economies in eastern Europe and a trend toward more decentralized German business management, helped the German economy to adapt more readily than many other countries when China entered world markets in force in the early 2000s.
Germany has its economic problems, of course. For example, one essay emphasizes that it has historically tended to lag behind in business entrepreneurship and research and development efforts. But when it comes to Germany's economic success, perhaps the single biggest question is how to interpret its very large trade surpluses -- at almost 8% of GDP in 2017, the largest in the world.
We live in a time when a large trade surplus is sometimes treated as a mark of shining success, but that's a misunderstanding of what it actually means. A trade surplus just means that a country has domestic saving higher than domestic investment. As a result, the domestic saving is flowing to othre countries. (If the domestic saving was instead being spent on imports, then the trade surplus would be eliminated.) A couple of essays in this volume focus on Germany's trade surplus. For example, here is Marin's summary of one of them
Guntram Wolff focuses in Chapter 6 on the import side of the current account. From a national accounts perspective, a country will face a current account surplus if its savings exceeds its investments. He looks at the difference between savings and investments for the different sectors of the German economy, and finds that the German current account surplus is mainly driven by the corporate sector, where savings have gone up (by around 3 percentage points of GDP), while corporate investment has been falling (by around 2 percentage points of GDP). He dismisses the argument that the ageing of the population has contributed to the current account surplus, as many observers have argued, as the savings of the household sector have not contributed significantly to savings in the economy. His data show that the corporate sector has been deleveraging for more than 15 years, resulting in lower corporate investment in manufacturing in Germany compared to Italy and France. He concludes by advising that the German government should pay attention to Germany’s current account surplus, and suggests that the government should increase public investment (to address the low intangible capital stock that he documents) and encourage private investment.
This volume has a lot of useful background, but it also seems to me to sidestep the question of the euro. One reason for Germany's enormous trade surplus is that other nations within the euro-zone have offsetting large trade deficits. In the old pre-euro days, a small or mid-sized European economy with a large and sustained trade deficit with the other European countries would watched or engineered a decline in the foreign exchange rate of its currency, which would have reduced the trade deficit by making the exports from that nation cheaper on world market and making imports more expensive for consumers from that country.
But the euro-zone is locked into a single currency, and so exchange rates can't adjust. When exchange rates can't move, there is instead a slow and painful process of "real depreciation" in which wages and prices within a country face downward pressure over time, often in a context of depressed growth. While Germany is booming with its outsized trade surpluses, Italy and Greece and others are staggering. In that sense, Germany's indubitable economic strengths are under an ongoing shadow of what will happen across the euro-zone as a whole. For example, here's Paul Krugman in the New York Times from a few days ago (May 21, 2018):
Many of Europe’s problems come from the disastrous decision, a generation ago, to adopt a single currency. The creation of the euro led to a temporary wave of euphoria, with vast amounts of money flowing into nations like Spain and Greece; then the bubble burst. And while countries like Iceland that retained their own money were able to quickly regain competitiveness by devaluing their currencies, eurozone nations were forced into a protracted depression, with extremely high unemployment, as they struggled to get their costs down. ... Some of the victims of the euro crisis, like Spain, have finally managed to claw their way back to competitiveness. Others, however, haven’t. Greece remains a disaster area — and Italy, one of the three big economies remaining in the European Union, has now suffered two lost decades: G.D.P. per capita is no higher now than it was in 2000.
Timothy Taylor is an American economist. He is managing editor of the Journal of Economic Perspectives, a quarterly academic journal produced at Macalester College and published by the American Economic Association. Taylor received his Bachelor of Arts degree from Haverford College and a master's degree in economics from Stanford University. At Stanford, he was winner of the award for excellent teaching in a large class (more than 30 students) given by the Associated Students of Stanford University. At Minnesota, he was named a Distinguished Lecturer by the Department of Economics and voted Teacher of the Year by the master's degree students at the Hubert H. Humphrey Institute of Public Affairs. Taylor has been a guest speaker for groups of teachers of high school economics, visiting diplomats from eastern Europe, talk-radio shows, and community groups. From 1989 to 1997, Professor Taylor wrote an economics opinion column for the San Jose Mercury-News. He has published multiple lectures on economics through The Teaching Company. With Rudolph Penner and Isabel Sawhill, he is co-author of Updating America's Social Contract (2000), whose first chapter provided an early radical centrist perspective, "An Agenda for the Radical Middle". Taylor is also the author of The Instant Economist: Everything You Need to Know About How the Economy Works, published by the Penguin Group in 2012. The fourth edition of Taylor's Principles of Economics textbook was published by Textbook Media in 2017.