Oki Sunardi, Jann Hidajat Tjakraatmadja, Yuni Ros Bangun, Towards the Sustainability of Indonesian Medium-Sized Food Manufacturing Enterprise: The Role of Informal Knowledge Sharing, The Social Sciences, Volume 11,Issue 30, 2016, Pages 7178-7182, ISSN 1818-5800, sscience.2016.7178.7182, (https://makhillpublications.co/view-article.php?doi=sscience.2016.7178.7182) Abstract: This study aims to examine the interrelations between certain human capital initiatives (reward systems and training programs) and enterprise sustainability (innovativeness, adaptiveness and growth) with the existence of informal knowledge sharing practice as moderating factor. This study employs empirical information generated by interviews to professional experts (senior staff, middle manager and top manager) from selected Indonesian medium-sized food manufacturing enterprises. As results, a conceptual model is derived and a set of hypotheses is developed for further study needs. Keywords: Human capital initiatives;enterprise sustainability;informal knowledge sharing;medium enterprise;needs