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PurposeThe purpose of the paper is to investigate the association between the intellectual capital (IC) of firms and their financial performance.Design/methodology/approachThe paper uses the Pulic framework, has an Asian focus, and draws on data from 150 publicly listed companies on the Singapore Exchange. It is an empirical study using partial least squares (PLS) for the data analysis. The paper tests four elements of IC and company performance.FindingsThe findings show that: IC and company performance are positively related; IC is correlated to future company performance; the rate of growth of a company's IC is positively related to the company's performance; and the contribution of IC to company performance differs by industry.Research limitations/implicationsThe data sample is restricted to 150 companies listed on the Singapore Exchange between the years 2000 and 2002.Practical implicationsIC is an area of interest to numerous parties, such as shareholders, institutional investors, scholars, policymakers and managers. The findings help to embolden modern day managers to better harness and manage IC.Originality/valueThe study of IC has undergone a number of stages, from early conscious awareness efforts to classification of IC, and to the search for appropriate measures of IC. This paper builds on the current research on IC and provides empirical evidence on the relevance of IC (as measured by the Pulic model) to the financial performance of companies.

Rare books of political economy are eminently collectable. Using historical prices, I employ hedonic regressions to estimate financial returns to collecting the works of ten eminent political economists and develop a price index for this corpus of collectables. For the observation period 1975-2019, I find that in those 45 years investing in rare political economy books yielded an average annual real rate of return of 2.8%, which is well in line with the returns to collecting rare books of classical literature. Compared with other collectibles such as fine art, investing in rare books turns out to be financially more profitable.