The Divergent Paths of the Ethnic Parties in Post-Communist Transitions

This article provides a comparative analysis of the evolution of ethnic parties in the three most important ethnically divided societies in post-communist Europe (not including the former Yugoslav republics): Bulgaria, Romania and Slovakia. The starting point of the analysis is the fall of communism, when ethnicity re-emerged as a salient issue in each of these three states and a potential source of conflict. In these contexts, the ethnic parties formed by each of the most important minorities in these states became crucial actors of transition, but also highly relevant at the level of highly volatile party systems. In contrast with the wide majority of the literature, which focuses on single case studies, this exploratory study allowed for a comparative multi-dimensional account of the development and evolution of several ethnic parties, paying attention to the national contexts. Rather than reaching major conclusions that can be generalized for ethnic parties in general, this article provides a good base for further comparative studies on ethnic parties as crucial actors in divided societies.     

On a confidence interval about a parameter estimated by a ratio of normal random variables

A confidence interval is geometrically constructed about a parameter estimated by the ratio of bivariate normal random variables. The resulting confidence interval is equivalent to that of Fieller's theorem. The geometric construction shown that such intervals are conservative. Bioassay examples are used to demonstrate the technique.     

Squaring the welfare circle and government ideology: Greece and Spain in the 1990s

This article examines the "squaring the welfare circle" thesis and its usefulness to our understanding of welfare developments in Greece and Spain in the 1990s. The welfare state in both Greece and Spain was expanded considerably in the early 1980s by the newly elected socialist governments, only to hit the buffers of diminishing resources and rising demands in the late 1980s as well as the hostile neo-liberal welfare ideology. The process of welfare expansion was halted in the 1990s, labour market deregulation was encouraged and containment of welfare expenditure became the dominant aim of government policies. This article concentrates on the actual policies of governments in the 1990s rather than on the rhetoric of political parties. It concludes that governments of both the Left and the Right in both countries attempted to "square the welfare circle" mainly through reductions in the supply of welfare. This general conclusion is country-specific and may not apply to other countries involved in welfare restructuring. While recognizing the significance of institutional factors to welfare reform, the article concentrates on the outcomes of reforms rather than on the political process leading to them.     

Estimable functions in the nonlinear model

When the method of least squares is used to estimate the parameters in a general model and the generated system of normal equations is linearly dependent, the estimate of the vector of parameters which satisfies the criterion is not unique. However, there exist certain functions of the estimated vector of parameters which are invariant to the least squares solution obtained from the normal equations. We define those invariant functions to be estimable, and present a technique to determine the functions of the parameters which are estimable for the general model. The method results in solving either a linear first order partial differential equation or a system of linear first order partial differential equations corresponding, respectively, to a single or multiple dependency between columns of the Jacobian matrix of the mean of the model. The usual results concerning estimability for linear models are a special case of the general results developed.