stochastic frontier analysis GOVERNANCE 1 Mongolia 1 Ownership concentration and structure 1 PERFORMANCE 1 PRIVATIZATION 1 Solanum tuberosum 1 Vegetable production 1 agricultural labor 1 agricultural land 1 alignment method 1 crop production 1 data envelopment analysis 1 determinants of technical inefficiency 1 government-linked companies 1 information sharing 1 modeling 1 productive efficiency 1 relational norms 1 supplier development 1 technical efficiency 1 vegetable 1