We have analyzed the behaviour of primary fiscal balance and public debt in Serbia before and in the aftermath of the global financial crisis. The results of our analysis are: i) public debt to GDP ratioexhibits (near) unit root behaviour with an overall upward time trend; ii) the response of primary fiscal balance to public debt has been insufficient to mean revert the upward trend in government debt; iii) the efforts of the Serbian government to repay the debt principal after the fiscal rule breach have not been persistent, providing empirical support to the fiscal fatigue hypothesis; iv) the government budget constraint has deteriorated since the beginning of the global financial crisis; v) the response of primary fiscal balance to public debt from the onset of the global financial crisis has dropped more severely in comparison to other European economies.

We focus on the response of primary fiscal balance to interest payments and borrowing costs on Serbian public debt before, during and in

Patients with Parkinson's disease are often at risk of polypharmacy, which can lead to serious medication side effects and interactions. Serotonin syndrome (SS) can develop in this patient population due to a possible drug-drug interaction between antidepressants and antiparkinson drugs with serotoninergic activity. On the other hand, these patients are also at risk of malignant syndrome (MS) secondary to dopaminergic medication withdrawal. In this case report, we present a 71-year-old female with Parkinson's disease who developed symptoms suggestive of SS. The patient was admitted to the medical intensive care unit at the Institute for Pulmonary Diseases of Vojvodina in the Republic of Serbia due to impaired consciousness and a previously witnessed cardiorespiratory arrest. Her chronic antiparkinson medication regimen consisted of levodopa, benserazide, entacapone, ropinirole, and rasagiline. Furthermore, she had been prescribed duloxetine for a remote history of depression, which she had only been taking intermittently. Several days before admission, however, the patient started taking duloxetine again due to low mood. Upon admission, laboratory tests revealed leukocytosis with neutrophilia, elevated C-reactive protein, procalcitonin, lactate, urea, and creatinine. Serum creatine kinase (CK) levels were also elevated at 1250 U/L. Six hours after admission to the ICU, the patient developed hyperthermia, hyperreflexia, spontaneous myoclonus, and tremors. Her CK levels continued to rise, reaching 6900 U/L, and her renal function worsened. Due to the possibility of either SS or MS, external cooling measures with frozen gel packs were administered, resulting in the patient's stabilization over a few hours. Further, serotoninergic medication (rasagiline and duloxetine) was discontinued. On the fifth day of hospitalization, a head CT showed signs of cytotoxic edema. On the 11th day, the patient became hemodynamically unstable and passed away despite all adequate resuscitative measures.The purpose of this case report is to raise awareness of possible SS in patients taking monoamine oxidase-B (MAO-B) inhibitors such as rasagiline. Clinicians should have a high index of suspicion for this complication, especially in patients who are treated for comorbid depression with serotoninergic drugs. Furthermore, we emphasize the importance of correctly differentiating SS from MS, which are both risks for patients with Parkinson's disease. A correct approach to these patients is of utmost importance for adequate management and optimal outcomes.

This paper investigates the dynamics of public debt growth in Serbia between 2004Q4 and 2017Q4. The overall public indebtedness in Serbia exhibited one of the fastest increases among emerging European economies from the onset of the Great Recession (Andric et al., 2016a). In particular, public debt-to-GDP ratio declined sharply before the crisis, since the government accompanied debt write-offs by Paris and London club of creditors with the use of privatization proceeds for deficit financing (Andric et al., 2016b). After the crisis hit Serbian economy in the second half of 2008, narrowing output gap and absorption gap reduced the share of government revenues in GDP. Consequently, fiscal deficit widened, and the growth of public debt accelerated (Arsic et al., 2013). Between 2008Q4 and 2014Q4, public debtto-GDP ratio increased for approximately 40 percentage points: in 2008Q4, public debt stood at around 30% of GDP, while in 2014Q4 it consumed approximately 70% of GDP (Andric et al., 2016b). In 2012Q1, public debt breached its upper limit of 45%

The paper derives the equivalence condition between the Beveridge-Nelson decomposition and the Hansen-Sargent prediction formula in continuous time using Laplace transforms. The results presented show how the Hansen-Sargent prediction formula is relevant not just for present value discounting but also for the trend-cycle decomposition of cash flow streams in corporate finance.