Frontier-based approaches to eco-efficiency measures have long been controversial because no normative definition is provided. Previous studies used technical efficiency, environmental and other variables as a proxy. To standardize its definition, we propose formal indicator, the ratio of actual gross domestic product (GDP) impact potential GDP impact. quantify it, develop biennial meta-frontie...

Quantifying the shadow price (SP) of CO2 emissions is key to achieving China’s “double carbon” targets. Considering technology heterogeneity, this study applies stochastic frontier analysis combined with meta-frontier estimate environmental technical efficiency (ETE) and SP for fossil fuel power plants from 2005 2015. This approach overcomes lack statistical inference consistency traditional me...

Abstract This study examines the efficiency of investment trust companies (ITCs) from 2011 to 2020 using a meta-frontier two-stage network data envelopment analysis (DEA) based on directional distance function (DDF). We improved accuracy measurement and added network-based ranking component rank top-performing entities. In group-specific technology assessment, foreign ITCs excel in efficiency. ...

China currently adopts voluntary principles to disclose sustainable development information, and so considerable numbers of listed companies have chosen not such information. Since disclosure non-disclosure groups face different production opportunities, this research uses the meta-frontier framework completely analyze practices China’s artificial intelligence (AI) industry. Empirical results s...

Knowledge frontier discovery is a novel technique for identifying interesting subpopulations of a dataset with respect to classification performance. A knowledge frontier is a collection of meaningful groups where any sub-partition with significantly different predictive accuracy is not meaningful. This research introduces knowledge frontiers and knowledge frontier discovery. The first knowledg...

Abstract The purpose of this study is to investigate regional differences in the business characteristics Japanese agricultural cooperatives (JAs), which have been widely criticized for depending on non-agricultural activities, contradictory cooperative principles. We construct a panel data set over 2004–2019 from financial statements JAs’ prefectural-level federations and use stochastic meta-f...