What are the resulting effects (spillovers) of the economic policies that Germany could implement on the other euro-zone countries?

The German economy is becoming very weak as a result of the major problems in traditional industry. We seek to identify the effects of the economic policies that Germany could implement on the other euro-zone countries: An expansionary fiscal policy in Germany may have a negative impact on the other countries if this policy primarily benefits economic agents residing in Germany and if it leads to a rise in interest rates caused by a less expansionary monetary policy by the ECB; A policy of driving down unit wage costs (reduction in wages and in companies’ social contributions) is obviously non-cooperative, as its goal is to take market shares from other countries. So it is possible that the weakness of Germany's economy will have a negative impact on the other euro-zone countries , not only directly , but also because the resulting effects (spillovers) of Germany's economic policy reaction on the other countries are negative for these other countries.