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51.
The paper is concerned with testing normality in samples of curves and error curves estimated from functional regression models. We propose a general paradigm based on the application of multivariate normality tests to vectors of functional principal components scores. We examine finite sample performance of a number of such tests and select the best performing tests. We apply them to several extensively used functional data sets and determine which can be treated as normal, possibly after a suitable transformation. We also offer practical guidance on software implementations of all tests we study and develop large sample justification for tests based on sample skewness and kurtosis of functional principal component scores. 相似文献
52.
Elisabeth Naima Mikkelsen Barbara Gray Anne Petersen 《Journal of Management Studies》2020,57(7):1355-1383
A critical but overlooked issue in Weick’s seminal work, The Social Psychology of Organizing (1969/1979), concerns ‘the heat’ of organizing processes, namely, the underground emotional processes underpinning the organizing of conflictual work relationships. We present a qualitative case study of psychiatric agencies mandated by public policy to collaborate but instead engaged in persistent conflict despite its deleterious effects on their working relationship and on the wellbeing of the clients they intended to serve. To explain these conflictual features of organizing, we integrate Weick’s organizing theory with systems psychodynamics to deepen the understanding of emotions in organizing, specifically the motivational forces underpinning sensemaking and actions between interacting psychiatric agencies. This integration of theories reveals a critical feature of the relationship between the conscious and unconscious organizing processes: When a threat is involved, sensemaking and action are overtaken by social defences, resulting in dysfunctional organizing of the primary task. Drawing on these findings, we enrich Weick’s seminal work by developing a model that portrays organizing as the ritualized interaction of emotions, sensemaking and behavioural responses. 相似文献
53.
We identify determinants of large disparities in local unemployment rates across Poland. Using an extensive panel data-set on the NUTS-4 level (i.e. the poviats level, or districts or counties level) we examine a wide range of determinants of local unemployment. Our research examines two groups of the determinants: one related to equilibrium theory and the other related to disequilibrium theory of local unemployment. We find that demographics, education and sectoral employment composition exert a stronger impact over rates of local unemployment than various demand factors. The impact of the determinants, while robust for outliers, is not homogeneous across Polish regions. In particular, in the most depressed local labour markets, skill improvement programmes do not appear to work and unemployment rates are relatively less responsive to investment. Our research suggests that there is no easy cure for local unemployment in Poland, but a few policies have the potential to slightly reduce existing disparities. 相似文献
54.
The literature on open innovation (OI) is characterised by studies based both on large companies and small and medium-sized enterprises (SMEs). Among all, one of the less explored issues in SMEs is what impedes them to adopt OI. Thus, this paper has the threefold objective to identify which factors hinder the adoption of OI in SMEs, to investigate if different behaviours exist among SMEs in relation to these factors, and to understand if the same factors effectively influence the level of adoption of OI. Based on a survey on 157 Italian SMEs, we identified four main barriers (namely, ‘knowledge’, ‘collaboration’, ‘organisational’, and ‘financial and strategic’) and three profiles of firms, different in terms of innovativeness of the industries they belong to (knowledge intensive, medium-innovative, and less innovative) and hampering factors perceived (‘knowledge’, ‘financial and strategic’, and ‘collaboration’ and ‘organisational’ barriers). Moreover, we found that some of these factors effectively impede the adoption of the paradigm. 相似文献
55.
The goal of this article is to develop formal tests to evaluate the relative in‐sample performance of two competing, misspecified, nonnested models in the presence of possible data instability. Compared to previous approaches to model selection, which are based on measures of global performance, we focus on the local relative performance of the models. We propose tests that are based on different measures of local performance and that correspond to different null and alternative hypotheses. The empirical application provides insights into the time variation in the performance of a representative Euro‐area Dynamic Stochastic General Equilibrium model relative to that of VARs. 相似文献
56.
In the study we investigate the effectiveness of the National Bank of Poland in counteracting the negative results of the financial crisis in the Polish interbank market. The situation was exceptional in a sense, that during the period of the financial crisis the Polish interbank market experienced liquidity surplus, and the main problem of the central bank was to regain confidence among commercial banks and stimulate interbank transactions. We concentrate on the spread between the rate of overnight interbank loans and the reference rate and based upon its dynamics we assess the monetary policy of the Polish central bank. Using econometric techniques we study how the central bank influenced the spread, when its control over it weakened and when was it strengthened. The study is supported by the results of the survey directed to the headquarters of commercial banks. We conclude that the ability of the central bank to control overnight rate was temporarily lost during the first phases of the financial crisis, but gradually regained after implementation of the confidence pact. 相似文献
57.
An expected-utility maximizer, obliged to make a single purchase from two alternatives, finds that a queue forms for the good that would have been selected had both goods been available. An M/M/1 queue is posited and for each period of delay the maximum additional payment that the consumer would incur to join the queue is determined. This has implications for saving. Not only the availability of the good, but also the delay in obtaining it, the alteration in its arrival rate, and the “stampede effect” determine saving behavior. 相似文献
58.
59.
State-owned enterprises (SOEs) are commonly associated with undue advantages due to preferential treatment by the state. Simultaneously they are often quoted as handicapped given the notorious state interference, management problems and agency tensions. They used to be regarded as a mainly domestic issue but in the context of globalisation and the fact that states enter treaties with new obligations, SOEs’ performance ceased to be solely a domestic problem, increasingly so as state-owned multinational enterprises (SOMNEs) emerge. This article presents the results of research on Polish SOEs’ outward foreign direct investment (OFDI). It offers an overview of overseas activities of nine major Polish firms with a state stake and aims to contribute to the conceptual literature on foreign investments conducted by SOMNEs. We distinguish between FDI by SOMNEs as specific – privileged (facilitated) or discriminated (hampered) – investments subject to the home country’s state power and the host country’s state perception. 相似文献
60.
We analyze the changes in the task content of jobs in 24 European countries between 1998 and 2015. We link the O*NET occupational data with the European Union Labour Force Survey (EU‐LFS), and use the methodology of Acemoglu and Autor ( 2011 ). We find that the intensity of non‐routine cognitive tasks grew in all countries, while the intensity of manual tasks declined. Workforce upskilling was the major factor contributing to these developments. The intensity of routine cognitive tasks grew in most Central and Eastern European countries, but it declined in Western European countries. This difference is attributed to the contrasting patterns of structural changes in these groups of countries. 相似文献