CROSS-COUNTY INTERNAL MIGRATION AND CONVERGENCE IN ROMANIA

Research on internal migration can be divided into two directions: identifying itsdeterminants and/or assessing its consequences. Migration is bidirectional. i.e. can beaffected by and can affect socio-economic disparities within a country. On one hand, thedeterminants of internal migration can be numerous and their analysis is very complex and,on the other hand, migration should have, at least theoretically, some influence on incomeand unemployment convergence, i.e. disparities reduction. The objectives of this paper are toevaluate the level of internal migration in Romania using county data and to assess its impacton convergence, using various methods, both statistical and econometric. The main resultspoint out at: very low levels of migration and relative small differences among them, noinfluence of migration on GDP divergence and extremely low on unemployment convergence.internal migration, inequality indexes, convergence, non-linear model, panel data model

Interim Financial Reporting in the Perspective of harmonization of the Romanian Accountancy with the International Financial Reporting Standards

The main objective of the interim financial reporting is to present, timely and regularly, information concerning the enterprise’s capacity to generate earnings and cash flows and its financial position and liquidity. International Accounting Standard 34 “Interim Financial Reporting” concerns the financial statements for an interim period. According to IAS 34, the interim financial report includes a complete or condensed set of financial statements, elaborated for a shorter period than a full financial year. The accounting policies for recognition and measurement should be applied in the same way as they are applied in the annual financial statements. However, the preparation of the interim reports requires a greater use of estimation methods; the measurement procedures should be designed to ensure the correctness of all the resulting information provided to the users.interim financial reporting, interim report, interim period, recognition, measurement

Sparsity oracle inequalities for the Lasso

This paper studies oracle properties of $\ell_1$-penalized least squares in nonparametric regression setting with random design. We show that the penalized least squares estimator satisfies sparsity oracle inequalities, i.e., bounds in terms of the number of non-zero components of the oracle vector. The results are valid even when the dimension of the model is (much) larger than the sample size and the regression matrix is not positive definite. They can be applied to high-dimensional linear regression, to nonparametric adaptive regression estimation and to the problem of aggregation of arbitrary estimators.Comment: Published at http://dx.doi.org/10.1214/07-EJS008 in the Electronic Journal of Statistics (http://www.i-journals.org/ejs/) by the Institute of Mathematical Statistics (http://www.imstat.org

Convex Banding of the Covariance Matrix

We introduce a new sparse estimator of the covariance matrix for high-dimensional models in which the variables have a known ordering. Our estimator, which is the solution to a convex optimization problem, is equivalently expressed as an estimator which tapers the sample covariance matrix by a Toeplitz, sparsely-banded, data-adaptive matrix. As a result of this adaptivity, the convex banding estimator enjoys theoretical optimality properties not attained by previous banding or tapered estimators. In particular, our convex banding estimator is minimax rate adaptive in Frobenius and operator norms, up to log factors, over commonly-studied classes of covariance matrices, and over more general classes. Furthermore, it correctly recovers the bandwidth when the true covariance is exactly banded. Our convex formulation admits a simple and efficient algorithm. Empirical studies demonstrate its practical effectiveness and illustrate that our exactly-banded estimator works well even when the true covariance matrix is only close to a banded matrix, confirming our theoretical results. Our method compares favorably with all existing methods, in terms of accuracy and speed. We illustrate the practical merits of the convex banding estimator by showing that it can be used to improve the performance of discriminant analysis for classifying sound recordings

Basic Principles of Hedge Accounting

The development of the capital markets increases the key role of the financial manager both in using the new techniques for administrating the risks and in assessing hedge effectiveness. Risk means possible uncertainty regarding cash flows, influencing the fair value of assets and liabilities or the value of cash flow relating to future transactions of the entity. This article emphasizes that possible financial risk in international business, like as price risk, credit risk, risk of liquidity, can be hedged using financial instruments, especially derivatives, like as forward, futures, options and swaps. The accounting treatment for these instruments is presented in accordance to the basic principles of hedge accounting imposed by IAS 39. Additionally, there are references to the most important requirements regarding the accounting rules regarding recognition and measurement of hedged derivatives according to the Romanian regulations.hedge derivatives, fair value, hedge accounting, hedge effectiveness, risk management

EFFECTS OF INTERNATIONAL FINANCIAL CRISIS ON THE FINANCIAL SYSTEM AND MONETARY POLICY

The current financial and economic crisis seems to be unprecendentely in the last half century. The economic downturn extented in the USA, Europe and Japan seems to be much more painful than the economic downturn in 1981-1982. A massive drop of confidence is under way, both across the business sector, and the consumers, both reacting by cutting costs. The U.S. Government and some governments in Europe, are trying to recover stability, and nationalized parts of their financial sectors to an extent that is in conflict with the modern capitalism basics. Today the entire world seems to change its direction, shaping its course to a period wherein the state role will be higher, and that of the private sector will be lower. This will be probably the most dramatic consequence of the current economic crisis.liquidity, inflation, financial-accounting reportings, fiscal policy, financial markets