There are always trade disputes that could cause problems to ones economy. Sanction on Russia so far has caused more pain on Russia than on European nations. As for energy security, oil and natgas is a fungible commodity that does not depend on one supplier. If you haven't noticed, we have over production of oil right now that has caused prices to collapse everywhere. Oil speculators are putting paying to keep oil in tankers hoping for a bounce in prices (which has happened to some degree). In short, there is no shortage of oil. If you look at the brent wti spread, it's at a 4 year low.
So clearly, none of the sanctions have resulted in higher cost of energy for the Europeans. The Europeans economy is weak for fundamental reasons.
I can see that some pro-Russian posters here would want Europeans to really suffer from these sanctions and see that it's unwise to sanction Russia, but it doesn't reflect reality. If you want to attribute any external factors to European economic malaise, you should blame it on the slowdown of Chinese economy than anything else.
No Tphuang you are missing the point as well.
The trouble is I do not want to go too far off topic, and leave the Ukraine crisis to far behind.
The root of the current economic problems was the culmination of bad US based loans that culminated in the Banking train wreck of 2007. What are we are looking however is the effect of the breakdown in Russo/Western relations at a critical juncture of the post apocalypse reconstruction.
For many European companies (especially German ones) Russia was an important and stable emerging market right on the doorstep with a wealth of natural resources which were ripe for opening and exploiting.
As a consequence, many of these companies did one or more (sometimes all) of the above.
Buy shares in Russian companies (usually project specific)
Buy Russian currency to facilitate local trade activity
Invest in Rights in Russian Raw Materials projects
Invest in Industrial facilities in Russia
Invest in Industrial facilities in Eastern Europe aimed at primary and secondary activities based on projections of growth/development in EU/Russian trade.
The key point here is that you are talking about Billions and Billions of Euros committed/invested on the basis of stable growing trade and relations; both the direct bilateral and the indirect regional knock on.
Then came the Ukraine crisis and sanctions........ and suddenly all that investment looks risky and all those assets are in the very wrong place. Suddenly the projections are junk, sanctions force companies to offload shares and currency at huge loss prices.
Expensive Licenses are revoked or left idle
Expensive and often debt financed Industrial facilities are also idle with the loans still needing to be repaid. Worse still the threat of spreading violence sends Insurance premiums soaring and asset values plummeting.
This means that business that went (often with official encouragement) to East Europe and Russia are now risking rolling and escalating losses caused by:
The legal imperative to divest caused by (increasing) sanctions
The loss of physical trade.
The loss of confidence to invest in East Europe and over exposed companies due to massive unsupported investment debt
Irredeemable trading and subsequent balance sheet losses.
Further banking losses caused by same
Further credit freezes by Euro banks and worker layoffs by affected companies in tandem
All of which can easily push more individual EU nations and eventually the combined EU back into recession and a new fiscal crisis caused to loss in confidence in the Euro on account of the damage caused by new excess debt and low/negative Eurozone growth.
None of this by the way is new and German industry in particular has been saying this since Sanctions were first imposed last year.
What is different is that now Merkel and Hollande are listening and recognising that Putin will not back down and that allowing real further damage is just pointless.