Hans Lööf

Knowledge capital and performance heterogeneity:: A firm-level innovation study

This paper is an empirical analysis of knowledge capital and performance heterogeneity at the firm level. We apply new econometric methods to extensive data on innovation and innovative activities in Swedish manufacturing. Knowledge capital, defined as the ratio of innovation sales to total sales, is found to be a significant factor contributing to the performance heterogeneity among firms. A number of interesting results emerge. First, the results show that there is a two-way and positive relationship between firm performance and knowledge capital. This relationship holds even when we control for human capital, type of output, firm size, capital intensity, entry, merger, partial closure or exit of firms. Second, the elasticity of productivity growth with respect to knowledge capital is doubled when all innovations are substituted for radical innovations. Third, knowledge capital rises with innovation input per employee. Fourth, profitability is important for the willingness of firms to invest in innovative activities. Fifth, when controlling for differences in innovation investments and human capital, knowledge intense firms are not more innovative than labor and capital intense firms. Finally, organizational rigidities in innovation projects are found to have a significant negative impact on innovation output.

On the relationship between innovation and performance: A sensitivity analysis

We examine sensitivity of the estimated relationship between innovation and firm performance. In doing so, we rely on a knowledge production function approach and carry out comparisons in a number of ways. The sensitivity analysis is based on the comparison of a basic econometric model estimated assuming different error structure and using the same data source, an identical model but different data sources, different classifications of firms performance, different classifications of innovation and the two main different subpopulations of the business sector. The analyses are performed in both level and growth-rate dimensions. New findings are reported and previous results are confirmed as well. The study gives indications of what factors cause variations in the estimated effects of interest and the direction of changes.

Firm Level Innovation and Productivity - Is there a Common Story Across Countries?

Recent studies have documented extensive heterogeneity in firm performance within countries, and innovation has been found as an important determinant. This paper addresses the issue of innovation firm performance across countries. A growing number of national firm level studies on the innovation-productivity link have been conducted using new internationally harmonized survey data, known in Europe as Community Innovation Survey (CIS). Mainly due to confidentiality reasons cross-country comparisons of CIS data are still rare. The contribution of this paper is its unique approach of pooling original firm observations from Germany and Sweden. Applying a knowledge production function that gives the relationship between innovation input, innovation output and productivity, we find to a very large extent a common cross-country story for knowledge intensive manufacturing firms. Some interesting country-specific effects are reported as well.

Imports, Productivity and Origin Markets: The Role of Knowledge-intensive Economies

We investigate the impact of international knowledge transfers on productivity at the firm level. The flow of knowledge across borders is measured through imports from different markets. Using a dynamic panel GMM estimation on Swedish manufacturing firms with 10 or more employees over the period 1997–2004, three important results emerge. First, there is an instantaneous positive effect of imports on productivity. Second, the evidence points towards a distinct role of imports from the G7 countries, which accounts for 80 per cent of global R&D. Third, sensitivity analyses show that G7 imports are also important for small and non-affiliated firms.

Innovation Activities Explained By Firm Attributes And Location

In this paper, innovation activities of a firm are observed as its R&D spending and participation in three categories of innovation systems. The various factors that can influence a firms innovation efforts are divided into, (i) firm location reflecting the regional milieu and (ii) firm attributes such as corporate structure, nature of the knowledge production, type of industry and a set of specific firm characteristics. The study is based on information about 2094 individual firms, which may be non-affiliated or belong to a group (multi-firm enterprise). The empirical analysis applies a novel data set to examine the influence of location versus a vector of firm attributes. Among innovative firms, the location of a firm does not influence neither the R&D intensity nor the frequency of interaction in horizontal and vertical innovation systems, when controlling the skill composition, physical capital intensity, industry, firm size and market extension. The paper contributes to the literature by observing that innovative firms have similar characteristics irrespective of where they are located, although the share of innovative firms differs between regions.

Innovation and Growth: From R&D Strategies of Innovating Firms to Economy-wide Technological Change

Innovation & Growth : From R&D Strategies of Innovating Firms to Economy-Wide Technological Change

Technical change and total factor productivity growth for Swedish manufacturing and service industries

This article presents alternative specifications of the production functions of a large panel of Swedish firms for the period 1992 to 2000. The period can be characterized as a transition when long-run productivity growth in the Swedish economy improved from being among the weakest to one of the strongest within the Organization for Economic Co-operation and Development (OECD). In order to present a detailed exploration of this dramatic change, the time trend and general index models are applied to estimate Total Factor Productivity (TFP) growth, rate of technical change and returns to scale. The models are extended to allow for firm specific as well as time-varying technical change. The parametric TFP measures are also compared with the nonparametric Solow residual, and several hypotheses are tested to explain the growth patterns in the Swedish economy. It is found that the improved growth rate, initially starting in large exporting manufacturing firms, after a deep economic crisis at the beginning of the 1990s, spilled over to the rest of the economy, both manufacturing and services.

The link between firm-level innovation and aggregate productivity growth: a cross-country examination

This paper investigates whether failure in innovation at the firm level can account for cross-country heterogeneity in manufacturing productivity growth. There is no strong evidence in the literature on the existence of such link. Our work, however, differs in a number of ways from much of the previous cross-country comparisons on the relationship between innovation and productivity using firm-level data. First, a broader definition of innovation input is used in which research and development is one of several sources of innovation. Second, a quantitative innovation output measure is used in the analysis. Third, the analysis is based on larger and more representative samples of firms including small firms. Finally, an econometric framework based on the knowledge production function accounting for both selectivity and simultaneity bias is employed. The results from Nordic countries show that given difficulties in pooling the data, it is important to specify country-specific models accounting for country-specific effects and differences in the countries national innovation systems.

R&D Strategy, Metropolitan Externalities and Productivity: Evidence from Sweden

This paper studies the influence of metropolitan externalities on productivity for different types of long-run R&D engagement based on information from the Community Innovation Survey. We apply a dynamic general method of moments model to a panel of manufacturing and service firms with different locations in Sweden, classified as a metropolitan region, the largest metropolitan region, a metropolitan city, the largest metropolitan city and a nonmetropolitan area. This analysis generates three distinct results. First, the productivity premium associated with persistent R&D is close to 8 per cent in nonmetro locations and about 14 per cent in the largest city. Second, a firm without any R&D engagement does not benefit at all from the external milieu in metro areas. Third, no productivity premium is associated with occasional R&D effort regardless of the firms location.

FDI Inflows to Sweden: Consequences for Innovation and Renewal

FDI inflows have expanded rapidly during the past decade. This paper analyses if such inflows do introduce new characteristics of the innovation systems at national and regional levels. The paper studies two phenomena. First, what novelties are brought into the host region (country) when FDI inflows occur? Second, what are the consequences for the innovation intensity, technology transfer and economic performance of firms in a regional (national) economy that experiences FDI inflows? These issues are assessed by examining the characteristics of foreign multinationals and comparing them with the characteristics of multinational, uninational and non-affiliate firms, respectively. The analyses control for location, examine regional impacts, and are based on CIS data (Community Innovation Survey III). The paper contributes to earlier studies in two important ways. First, it compares FDI firms with three other distinct types of corporate structure. Second, it combines results from both parametric and non-parametric estimations. The results indicate that FDI inflows in an unambiguous way renew the local economy when acquiring or replacing domestic multi-unit firms (uninationals). Compared to other types of corporate structure, FDI firms do not seem to improve innovation characteristics of the local economy.