Employed unemployed? On shadow employment in transition

Unregistered employment poses two types of challenges to the researchers: (1) reliably evaluating the wage differential between formally and informally employed and (2) accounting for the push and pull factors in general and the effects of business cycle in particular. We address the former with the use of propensity score matching and analyse the evolution of the estimated average compensations and the differentials with reference to GDP and unemployment fluctuations. Using 13 years of quarterly labour force survey data from Poland of de iure unemployed but de facto employed individuals we find, that in-the-shadow compensations tend to be higher and procyclical. We also find considerable distributional heterogeneity.     

Non-cooperative strategies for production and shipment lot sizing in one vendor-multi-buyer system

The supply chain structure examined in this paper consists of a single vendor (or manufacturer) with multiple heterogeneous buyers (or retailers). A continuous deterministic model is presented. To satisfy buyers demands, the vendor will deliver the product in JIT shipments to each buyer. The production rate is constant and sufficient to meet the buyers’ demands. The product is shipped in discrete batches from the vendor's stock to buyers’ stocks and all shipments are realized instantaneously. Special production-replenishment policies of the vendor and the buyers are analyzed. That is, the production batch is transferred to each buyer in several sub-batches in each production distribution cycle (PDC).This paper offers game model without prices, where agents minimize individual costs. It is a non-cooperative (1+N)-person game model with agents (a single vendor and N-buyers) choosing numbers and sizes of transferred batches. The model describes inventory patterns and cost structure of PDC. It is proved that there exist Nash equilibria in several types of sub-games of the considered game.     

Internationalization and the Structure of the Company＇s Marketing Strategy on International Markets Theoretical Remarks

The paper presents theoretical reflection upon international marketing strategy in the framework of internationalization and globalization of the market. It consists of four parts. The first one debates the nature and reasons for corporate internationalization. The second part shows an international marketing strategy in the concept of corporate expansion. The strategy consists of two elements： the basic dimensions of foreign market entry modes （part 3） and business presence strategies in overseas markets （part 4）. This paper proposes a theoretical framework for research conducted by Department of Marketing of the Cracow University of Economics. The research has been conducted as a part of grant received by Polish National Centre of Science.     

Poland's tourism

Although research on tourism in Poland boasts a tradition going back to the 1930s, the last ten years or so have seen a marked growth in academic interest. Established in 1972 the Warsaw Institute of Tourism has been largely instrumental in fuelling this growth, undertaking research both for the government and regional tourist offices, publishing monographs and books, and representing Polish tourism at conferences abroad. Stanis?aw Ostrowski, the Institute's Director, briefly outlines the work of this important organization.     

Multisectoral econometric models of the centrally planned economies and the disequilibria

The paper provides a systematic analysis of the properties of large econometric macro models built for the Centrally Planned economies of the '70s and '80s. A specific typology of macro models is introduced, distinguishing between the demand and quasi-demand determined systems on the one hand and the supply and quasi-supply determined systems on the other, and also between complete and incomplete models specifying only one side of economic activities (i.e. generating either demand or supply). It is shown that, under the command type economy, the incomplete, fully supply determined systems prevailed, generating production and showing its allocation. The economic reforms of the '80s, which aimed at a slow transition towards market economies, brought about a tendency towards constructing complete quasi-supply determined systems (especially for Poland and the CSRS). Since, in principle, they were built for shortage economies, the model builders had to allow for unobservables (final and intermediate demand, capacity utilization) and, on the other hand, for an increasing role of the financial phenomena (including prices) and financial policy instruments. A summary of the applications of macro models in forecasting and policy simulations is provided and new tendencies associated with regaining economic equilibria and approaching the market mechanisms emerging in the period of transition are shown.This is a revised and extended version of our paper delivered at the Project LINK Meeting in Paris, 1989 (see W. Welfe 1989b), which made use of our earlier publication (W. Welfe 1988).     

A proposition of generalized stochastic Milevsky–Promislov mortality models

The aim of this article is to propose a new approach to the estimation of the mortality rates based on two extended Milevsky and Promislov models: the first one with colored excitations modeled by Gaussian linear filters and the second one with excitations modeled by a continuous non-Gaussian process. The exact analytical formulas for theoretical mortality rates based on Gaussian linear scalar filter models have been derived. The theoretical values obtained in both cases were compared with theoretical mortality rates based on a classical Lee–Carter model, and verified on the basis of empirical Polish mortality data. The obtained results confirm the usefulness of the switched model based on the continuous non-Gaussian process for modeling mortality rates.     

Estimation of cost efficiencies from mergers: application to US radio

This article estimates fixed‐cost efficiencies from mergers using a dynamic oligopoly model in which mergers and repositioning of products are endogenous. The inference is based on revealed preference approach selecting cost synergies that rationalize observed merger decisions. The estimates can be used to assess the total welfare impact of retrospective and counterfactual mergers. The framework is applied to estimate cost efficiencies after the 1996 deregulation of U.S. radio industry. Within the period of 1996 to 2006 the cost savings resulting from mergers amount to $1.2 billion per year (equally split across economies of scale and within‐format cost synergies).     

The concept study of Servqual method’s gap

The methodology of conduct, presented in this publication, allows conducting the study of clients’ satisfaction of services in a complex manner and at the same time, it allows getting to know all problems appearing in the process of their provision. Gap no 5 expresses a general client’s perception of services and allow defining his satisfaction. Gap 4 allows defining in what range the organization provides clients with false and distorted information in its promotion and advertising materials, which in consequence influence on their satisfaction. The result from gap no 4 can be used when planning promotion campaign. Gap no 2 and 3 allow defining if the organization is realizing the planned strategy of quality. It allows defining which employees provide services of a low quality and then by means of the application the appropriate motivation tools it allow to cut it out. Finally, gap no 1 which allow defining problems connected with marketing communication. It allows finding client’s needs which organization does not know and which should be included in its strategy.