The Norwegian productivity puzzle is rooted in three seemingly contradictory “facts”: First, Norway is one of the most productive OECD countries. Second, Norway has experienced high growth in productivity. Third, Norway has a relatively low level of R&D intensity. In this article, I show...

Aggregation of international prices in empirical work is generally based on well known index number formulas. However, a common practice applying such formulas is the use of price indices rather than price levels for which data across countries are rarely available. Numerical calculations of...

It is an established fact that firms, even within narrowly defined industries, differ with respect to productivity. In this paper we analyse how observed heterogeneity in productivity is affected by endogenous producer behaviour, and to what extent shifts in firm specific productivity parameters...

Aggregation of tangible capital assets across vintages and decomposition of value aggregates into quantities and prices are considered. Focus is on both capital stock values and capital service values. If the definitions and ways of measuring prices and quantities are not conformable, a third...

This paper presents a method for aggregation across markets in a Non-Walrasian model, focusing mainly on labor markets. The method utilizes a probabilistic approach based on aggregating across virtual price functions instead of demand functions or budget shares as is normally done. By assuming...

In the aggregation literature, prices and price and income derivatives are often assumed not to vary across consumers. These assumptions may not be fulfilled: prices often vary and consumers are heterogeneous in the way they respond to price and income changes. In this paper we develop and...

This paper studies how productivity shifts at the level of the firm are transmitted to aggregate industry productivity in a model of heterogeneous firms. We analyse both uniform productivity shifts, and catching up by reducing the productivity differentials between firms. The two kinds of shifts...