Correlated equilibria in continuous games: Characterization and computation

We present several new characterizations of correlated equilibria in games with continuous utility functions. These have the advantage of being more computationally and analytically tractable than the standard definition in terms of departure functions. We use these characterizations to construct effective algorithms for approximating a single correlated equilibrium or the entire set of correlated equilibria of a game with polynomial utility functions.     

Detecting income-smoothing behaviors of Turkish listed companies through empirical tests using discretionary accounting changes

Flexibility when selecting accounting methods sometimes motivates managers to choose accounting methods or to change employed ones in order to increase, decrease or smooth income figures. In this study, income-smoothing behaviors of Turkish listed companies are detected through empirical tests using discretionary accounting changes (DACs). Parallel to the study conducted by Moses [Moses OD. Income smoothing and incentives: empirical tests using accounting changes. The Accounting Review 1987;11(2):358–77], income smoothing is accepted as one motivation of DACs and the sample firms are classified as smoothers and non-smoothers by using Moses’ smoothing behavior index. Results show that possible motivations of DACs are income smoothing, economical characteristics of the periods in which the DACs are made, and the desire of Turkish firms to have net incomes close to zero.     

Financial constraints and international trade patterns

Growing empirical literature shows that financial constraints reduce the chance of exporting, suggesting that financial constraints are an important determinant of international trade patterns. In this aspect, I develop a model of international trade based on new trade theory with financial constraints and non-homothetic preferences. With these two modified assumptions, the main findings are i) financial constraints act as trade barriers, ii) the largest amount of trade is between countries that have healthier financial systems in terms of access to loans and iii) financial constraints can cause one way or zero trade. As a result, this paper provides a single framework able to account for all possible patterns (two-way, one-way, and no trade) within the same industry. All these findings have important policy implications for countries suffering from relatively poor financial systems.     

The Relationship Between Price Stability and Financial Stability: Evidence From Major Emerging Economies

We examine the relationship between price stability and financial stability for major emerging economies using a Markov regime-switching model. Empirical results suggest that monetary policy is consistent with the Taylor rule in all countries except for India and all countries followed both low and high inflation targeting monetary policy regimes. Low inflation targeting regime seems to be more persistent and has higher duration than high inflation targeting regimes except for Indonesia and South Africa. All countries seem to have had financial stability concerns when they formulated their monetary policy as the coefficient of the financial stress index is statistically significant at least in one regime. Overall the results suggest that Taylor rule-based monetary policies have been implemented to various degrees in major emerging economies to achieve economic stability, price stability, and financial stability.     

Firm taxation and the endogenous distribution of markups

Melitz and Ottaviano (2008) predicts a monotonic relation between productivity and markups. When including revenue taxes, however, this relation is non-monotonic and depends on taxes. Even without taxes, productivity and markups can be non-monotonic depending on how non-homotheticity is modeled.     

Triadic relationships in healthcare

One of the most important goals in healthcare today is reducing costs while maintaining high-quality care. This article focuses on a triadic relationship that is responsible for a significant amount of nonlabor spending in hospitals: physician preference items. The triadic relationship among salespeople, physicians, and hospitals’ supply managers has a direct influence on costs. Regarding some key purchases, the physician-salesperson relationship is closer than the physician-supply manager relationship—even though the latter two entities work for and within the same company and strive for the same mission. This reality creates a type of conflict that is perplexing to solve and costly to ignore. To better understand the sources of friction and opportunities for collaboration in this triad, personnel across hospitals, suppliers, and healthcare consortiums were interviewed. Herein, we introduce strategies to help resolve the conflict. It is essential that hospital supply managers continually negotiate for best solutions that consider both long-run costs and quality of patient care. Yet, salesperson motivations and close salesperson-physician relationships place barriers that prevent negotiations more common to other areas of spending. The strategies offered in this article highlight ways to mute negative and amplify positive effects of the physician-salesperson relationship.