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Working capital (WC) determinants play a crucial role in operating activities and corporate performance in a routine firm. This paper examines the influence of WC determinants on corporate performance employing a sample of thirty-one metal and mining firms listed on the National Stock Exchange (NSE), India for 10 years from 2010-2019. Pearson's correlation and fixed effect regression models were used to estimate the explanatory variables regression coefficients on the outcome variables. ROTA, ROEQ and ROCE variables were used to ascertain performance of sample firms and results revealed a significant negative influence of WCinventory period (INVP) and accounts receivable collection period) on corporate performance (ROTA,ROEQ & ROCE). No significant influence was observed between Corporate performance (ROTA, ROEQ & ROCE) and account Payable (AP). Moreover, Control variables corporate size (CZ) results revealed significant negative influence on corporate performance (ROTA,ROEQ & ROCE), & Debt ratio(DR) result revealed a negative significant influence on ROTA, ROEQ .The result of sales Growth (SG) indicated a positive significant influence of corporate performance (ROTA,ROEQ & ROCE). From the result of this study, it has been inferred that by reducing the INVP & ARCP the management can enhance corporate performance & eventually creating value for firm's shareholders. Through a meticulous reduction of the inventory period (INVP) & account receivable collection period (ARCP), firms can demonstrate the effective and efficient utilization of financial resources, mitigating default & liquidity risk thereby enhancing its profit. Thus, systematic utilization of working capital elements positively influences firm's performance.

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A recent letter studied different countries' positions in the field of anaesthesia in the period 1991 to year 2000 (Rahman et al. Anaesthesia 2002; 57: 1213-14). Among other things, the analysis elicited the top ranking 20 countries for research in the field of anaesthesia. Also, they revealed countries where research shares went down and up, respectively. The results were interesting, but one sentence puzzled me. The authors write: 'Journals not available in the Medline database for the entire 1991-2000 period were excluded (Acta Anaesthesiologica Scandinavica and Clinical Journal of Pain). To my knowledge, which is substantiated by a recent search in Medline, both journals have been available in the Medline database for the entire period (Table 1). I would be pleased if the authors could explain this difference.