, I guess you mean central Europe. Eastern Europe is mostly Russia, Belarus, Ukraine, Georgia, Armenia and Azerbaijan. The only countries that are geographically in Eastern Europe that have entered the UE are the Baltic States (and Finland).
Ukraine is a bankrupt economy riddled with political corruption and victim of its government's bureaucracy and interventionism. They couldn't even afford to pay for the natural gas that the Russians used to "sell" them at a bargain price in exchange of a geostrategic alliance.
In the ranking of economic freedom of The Heritage Foundation, Ukraine is ranked in the 162nd position, right between Burma and Bolivia, and 19 positions below Russia:«Ukraine’s economy remains “repressed.” The rule of law is particularly weak. The investment regime remains closed, with foreign investment competing with large state-owned enterprises. A rigid labor market and bureaucratic business regulations inhibit the development of a dynamic private sector.»
…«In 2014, Ukraine accepted $30 billion in aid from the IMF, World Bank, EU, and other bilateral donors.»
…«Pro-Western Ukrainians hoped their 2014 Euromaidan revolution would dismantle the oligarchic politics and deeply rooted cronyism that allowed business owners to amass wealth by exploiting their access to those in power rather than through efficient management, but that corrupt system is still largely in place under the Poroshenko government. The judiciary remains weak, and contracts may not be well enforced.»
…«The total tax burden equals 38.9 percent of domestic income. Government spending amounts to 49 percent of GDP, and public debt equals 41 percent of domestic output. The IMF is helping to bolster public finances.»
…«completing licensing requirements is still time-consuming. Modern and efficient bankruptcy procedures are not in place. The labor code is outmoded and lacks flexibility. Massive and price-skewing government subsidies (7 percent of GDP on natural gas subsidies alone) have caused deep economic distortions.»
…«Bureaucratic requirements deter much-needed growth in private investment. The primarily cash-based economy suffers from a lack of sufficient capitalization. Nonperforming loans continue to be a drag on the banking system.»heritage.org/index/country/ukraine
To sum up, Ukraine is the Greece of Eastern Europe. If it isn't so indebted as Greece yet is just because they haven't found yet the propitiatory fool to lend them the money that they will dilapidate.
Those $30 billion in aid the they've been given and won't probably ever return represents about 30% of its nominal GDP:«Ukraine will need additional bailout financing from outside the International Monetary Fund to keep the war-torn economy afloat, the head of the IMF said Thursday.The cost of the conflict with Russia-backed separatists has changed the country’s cash needs since the IMF originally designed a $30 billion international bailout program in April, of which the fund pledged to cover $17 billion.»
…«But economists outside the IMF say the funding requirement could be larger, and warn any overhaul of the IMF bailout program must include some sort of debt restructuring to ensure the country can return to economic health. The national elections later this month could provide the opportunity for a bailout overhaul, giving the lawmakers a chance to enact another round of politically tough economic policies that would help Kiev get a better grip on state finances. Those efforts could be reciprocated by additional international financing help.»wsj.com/articles/ukraine-will-need-more-bailout-funding-imfs-lagarde-says-1412876378 «Fund officials couldn’t say if such a scenario would overwhelm Kiev’s ability to pay its debts and force it into default. The IMF did say that more financing could be needed if the crisis wasn’t resolved in the coming months, more than double the $17 billion the fund has already promised Ukraine under the emergency bailout.»
…The Institute of International Finance, an industry group representing the world’s largest private banks and other financial firms, warned as much even before the IMF signed off on the bailout deal.Mr. Åslund suggests “an amicable restructuring” after the elections in October. The fund should use its 1991 program with Poland as a template: “They wrote off half the debt in return for a very strong stabilization and reform program,” he said.»blogs.wsj.com/economics/2014/09/17/ukrainian-elections-may-ease-way-toward-bailout-overhaul