Pieter (Jop) WOLTJER

Postdoc Economic History – University of Groningen



Article: Is Egypt Really More Productive than the United States?

The Data behind the Penn World Table

ABSTRACT: A new feature in recent versions of the Penn World Table (PWT) is data on comparative levels of total factor productivity (TFP) across countries. TFP is defined as the efficiency with which inputs are transformed into outputs, and differences across countries can be due to factors such as better technology or better resource allocation. Yet, surprisingly, in PWT version 10.0, a number of low-income countries have a TFP level well above that of the United States. Continue reading “Article: Is Egypt Really More Productive than the United States?”

Working Paper: Long-run World Input-Output Database

Version 1.0 Sources and Methods

ABSTRACT: In this paper we outline the construction of the WIOD for a longer period, namely from 1965 onwards, hence the name Long-run WIOD (LR-WIOD). This encompasses the period of rapid growth in the world economy Continue reading “Working Paper: Long-run World Input-Output Database”

Working Paper: Inconsistencies in Comparing Relative Prices Over Time

Patterns and Facts

ABSTRACT: Purchasing power parities (PPPs) aim to measure relative price levels across countries, like inflation aims to measure relative price levels over time. Ideally, the change in PPPs over time should be consistent with relative inflation, Continue reading “Working Paper: Inconsistencies in Comparing Relative Prices Over Time”

Column: Historical Productivity Growth from Run of the Mill Industries

Evidence from the United States

Historically, productivity growth was not all about high tech sectors and research and development (R&D) expenditure. A new study published The Economic Journal finds that the great majority of productivity originated in other, more ‘run-of-the-mill’ industries. Continue reading “Column: Historical Productivity Growth from Run of the Mill Industries”

Article: The Composition of Capital and Cross-country Productivity Comparisons

ABSTRACT: The role of physical capital is typically found to be limited in accounting for differences in GDP per worker, but this result may be because capital is customarily assumed to be a homogenous unit. This assumption is misleading,  Continue reading “Article: The Composition of Capital and Cross-country Productivity Comparisons”

Dataset: U.S. Growth Accounts, 1899-1941

A growth decomposition for the U.S. private domestic economy and a 38-industry breakdown. For peak years between 1899 and 1941, this dataset includes detailed estimates for output, employment, hours worked, labor quality, labor services, capital stocks, capital quality, capital services and  Continue reading “Dataset: U.S. Growth Accounts, 1899-1941”

Article: The Sources of Growth in a Technologically Progressive Economy

The United States, 1899-1941

ABSTRACT: We develop new aggregate TFP growth estimates for the United States between 1899 and 1941, and sectoral estimates at the most disaggregated level so far, 38 industries. We include hard-to-measure services, and a refined measure of sectoral labour quality growth.  Continue reading “Article: The Sources of Growth in a Technologically Progressive Economy”

Chapter: Frontier Analysis

Frontier Analysis

ABSTRACT: A great deal of research in economics and business is devoted to the study of efficiency of individuals, organisations or entire economies. This chapter introduces a family of innovative techniques  Continue reading “Chapter: Frontier Analysis”

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