| GDP per capita | Lag lengths [k] | t-statistics | Break | Lag lengths [k] | t-statistics | Break |
| Level | First differences | |||||
|
| Bulgaria | |||||
| Intercept | - | - | - | [0] | −5.76* | 2008 |
| Trend | [0] | −4.15*** | 2002 | [0] | −6.16* | 2009 |
| Both | [0] | −4.17 | 2005 | [0] | −6.06* | 2009 |
|
| Croatia | |||||
| Intercept | [1] | −2.64 | 2012 | [0] | −3.81 | 2009 |
| Trend | [1] | −4.09 | 2009 | [0] | −6.12* | 2008 |
| Both | [1] | −4.22 | 2006 | [0] | −5.94* | 2009 |
|
| Greece | |||||
| Intercept | [1] | −2.34 | 2010 | [2] | −4.61*** | 2008 |
| Trend | [1] | −3.25 | 2004 | [2] | −4.56** | 2008 |
| Both | [1] | −4.13 | 2006 | [2] | −5.95* | 2008 |
|
| Romania | |||||
| Intercept | - | - | - | [0] | −5.61* | 2009 |
| Trend | [1] | −3.64 | 2002 | [0] | −4.83** | 2007 |
| Both | [1] | −3.79 | 2005 | [0] | −5.53* | 2009 |
|
| Slovenia | |||||
| Intercept | [1] | −4.50 | 2012 | [0] | −4.73*** | 2009 |
| Trend | [1] | −3.90 | 2008 | [0] | −4.91** | 2009 |
| Both | [1] | −4.85*** | 2012 | [0] | −4.87*** | 2009 |