3 papers
stat.AP2024
Are Economically Advanced Countries More Efficient in Basic and Applied Research?
VladimÃr Holý, Karel Å afr
Research and development (R&D) of countries play a major role in a long-term development of the economy. We measure the R&D efficiency of all 28 member countries of the European Un…
stat.AP2024
Clustering Retail Products Based on Customer Behaviour
VladimÃr Holý, OndÅej Sokol, Michal Äerný
The categorization of retail products is essential for the business decision-making process. It is a common practice to classify products based on their quantitative and qualitativ…
q-fin.ST2024
Zero-Inflated Autoregressive Conditional Duration Model for Discrete Trade Durations with Excessive Zeros
Francisco Blasques, VladimÃr Holý, Petra Tomanová
In finance, durations between successive transactions are usually modeled by the autoregressive conditional duration model based on a continuous distribution omitting zero values.…