Search Results - subject:"spaces"

Concepts of Space, Refiguration of Spaces, and Comparative Research: Perspectives from Economic Geography and Regional Economics

Suwala, Lech - In: Forum Qualitative Sozialforschung / Forum: Qualitative … 22 (2021) 3

Following the concept of refiguration of spaces proposed by KNOBLAUCH and LÖW (2017), in this article I emphasize …. Since the refiguration of spaces offers an abstract frame capable of grasping spatial relations of any order and across … comparative research. In my findings, I show that the abstract frame of refiguration of spaces unlocks great potential if applied …

Persistent link: https://www.econbiz.de/10012626027

Source of Life or Kiss of Death : Revisiting State-Civil Society Dynamics in India during COVID-19 Pandemic

Tandon, Rajesh; Aravind, Ram - In: Nonprofit Policy Forum 12 (2021) 1, pp. 147-163

Abstract As COVID-19 spread through India, Civil Society Organizations (CSO)s mobilized resources to support the efforts of the Government by playing the role of an active partner in providing social and economic welfare to the affected population. This paper aims to provide a concise overview...

Persistent link: https://www.econbiz.de/10014616788

Cointegration, root functions and minimal bases

Franchi, Massimo; Paruolo, Paolo - In: Econometrics 9 (2021) 3, pp. 1-27

This paper discusses the notion of cointegrating space for linear processes integrated of any order. It first shows that the notions of (polynomial) cointegrating vectors and of root functions coincide. Second, it discusses how the cointegrating space can be defined (i) as a vector space of...

Persistent link: https://www.econbiz.de/10012696336

Die Europäische Datenstrategie – ein Binnenmarkt für Daten

Klumpen, Dorothea; Schliffka, Christina; Polus, Dominique - In: WISTA - Wirtschaft und Statistik 73 (2021) 6, pp. 22-30

Mit der Europäischen Datenstrategie hat sich die Europäische Kommission zum Ziel gesetzt, einen europäischen Binnenmarkt für Daten zu etablieren. Sie ist ein wichtiger Baustein der Antwort der Europäischen Union auf die Herausforderungen der Digitalisierung. Die Europäische Datenstrategie...

Persistent link: https://www.econbiz.de/10012705031

Doing business, making friends : how a collaborative environment emerges in coworking spaces

Sandoval López, Claudia - 2021

Persistent link: https://www.econbiz.de/10012887410

Large Non-Stationary Noisy Covariance Matrices : A Cross-Validation Approach

W. C. Tan, Vincent; Zohren, Stefan - 2021

We introduce a novel covariance estimator that exploits the heteroskedastic nature of financial time series by employing exponential weighted moving averages and shrinking the in-sample eigenvalues through cross-validation. Our estimator is model-agnostic in that we make no assumptions on the...

Persistent link: https://www.econbiz.de/10013244599

GMM Weighting Matrices In Cross-Sectional Asset Pricing Tests

Laurinaityte, Nora; Meinerding, Christoph; Schlag, Christian - 2021

Cross-sectional asset pricing tests with GMM can generate spuriously high explanatory power for factor models when the moment conditions are specified such that they allow the estimated factor means to substantially deviate from the observed sample averages. In fact, by shifting the weights on...

Persistent link: https://www.econbiz.de/10013249850

Shrinkage estimation of large covariance matrices : keep it simple, statistician?

Ledoit, Olivier; Wolf, Michael - 2021 - This version: June 2021

Under rotation-equivariant decision theory, sample covariance matrix eigenvalues can be optimally shrunk by recombining sample eigenvectors with a (potentially nonlinear) function of the unobservable population covariance matrix. The optimal shape of this function reflects the loss/risk that is...

Persistent link: https://www.econbiz.de/10012584105

Commonotonicity and time-consistency for Lebesgue-continuous monetary utility functions

Delbaen, Freddy - In: Finance and stochastics 25 (2021) 3, pp. 597-614

Persistent link: https://www.econbiz.de/10012585990

COVID-19 bringing cairenes back to their streets

Ghanem, Salma; Ahmad, Aliaa F.; Aboualy, Sarah - In: Journal of urban management 10 (2021) 4, pp. 393-408

the livability of the urban public spaces enhanced. Residents of Cairo were widely seen using every well-maintained public …

Persistent link: https://www.econbiz.de/10012694629