Krisztián Koppány

57190260040

Publications - 11

Two problems with the use of the cost-push input−output price model

Krisztián Koppány

Publication Name: Economic Systems Research

Publication Date: 2025-01-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

This paper identifies two problems related to the use of the cost-push input–output (IO) price model that have not been previously discussed in the literature. These problems and their proposed solutions are presented with numerical examples and illustrative applications. The first issue relates to the variation of export exchange rates, which cannot be modelled within the framework, yet affects the output-price index. Without addressing this problem separately, the model yields an incorrect result. The second issue concerns the available data compatible with IO tables and IO price analyses, specifically the output price deflators or implicit price indices. Being of the Paasche-type, these indices are better suited for retrospective studies than for forecasting. This paper proposes a basic decomposition framework for analysing output price inflation both before (ex-ante) and after (ex-post) it occurs. For the ex-post analysis, a simplified empirical application for Hungary illustrates the practical potential of the model.

Open Access: Yes

DOI: 10.1080/09535314.2025.2539721

The Construction and Application of the Economy-Electricity-Emissions Input-Output (IO-E3) Table for Hungary

Krisztián Koppány

Publication Name: Chemical Engineering Transactions

Publication Date: 2024-01-01

Volume: 114

Issue: Unknown

Page Range: 733-738

Description:

This paper presents the steps and methods of producing the IO-E3 Economy-Electricity-Emissions input-output table for Hungary, which contains 28 industries, 8 sub-industries of electric power plants, and 5 final demand categories. Simulations performed with the model show that the ongoing 120 % expansion of nuclear capacity can result in a 55.2 %, 35.1 %, and 30.1 % increase in electricity production, value-added, and greenhouse gas emissions if the structure of final demand and technology are not changed. Smart use of the predicted 17.48 TWh of electricity surplus, however, must precisely aim these changes to best serve Hungary's sustainability transition through harnessing technological developments and by changing economic structures.

Open Access: Yes

DOI: 10.3303/CET24114123

OWA operators in the insurance industry

István Harmati Dávid Fülep Krisztián Koppány Norbert Kovács

Publication Name: Journal of Infrastructure Policy and Development

Publication Date: 2024-01-01

Volume: 8

Issue: 13

Page Range: Unknown

Description:

In this paper, we examine a possible application of ordered weighted average (OWA for short) aggregation operators in the insurance industry. Aggregation operators are essential tools in decision-making when a single value is needed instead of a couple of features. Information aggregation necessarily leads to information loss, at least to a specific extent. Whether we concentrate on extreme values or middle terms, there can be cases when the most important piece of the puzzle is missing. Although the simple or weighted mean considers all the values there is a drawback: the values get the same weight regardless of their magnitude. One possible solution to this issue is the application of the so-called Ordered Weighted Averaging (OWA) operators. This is a broad class of aggregation methods, including the previously mentioned average as a special case. Moreover, using a proper parameter (the so-called orness) one can express the risk awareness of the decision-maker. Using real-life statistical data, we provide a simple model of the decision-making process of insurance companies. The model offers a decision-supporting tool for companies.

Open Access: Yes

DOI: 10.24294/jipd8015

Hungary's inflationary exposures to global price movements

Pál Pusztai Peter Vakhal Krisztián Koppány

Publication Name: Society and Economy

Publication Date: 2023-09-15

Volume: 45

Issue: 3

Page Range: 186-207

Description:

This paper investigates Hungary's inflationary exposures to global price movements using a simple cost-push input-output price model and a database of inflation-to-output price elasticities (Global Inflation-to-Output Price Elasticity Database, GIOPED) developed on the basis of the OECD's Inter-Country Input-Output Tables. Inflation elasticities are decomposed into local, simple, and complex global value chain effects by applying Wang's decomposition scheme (Wang et al. 2017) to price movements and inflation. Our empirical analysis based on GIOPED elasticities shows that Hungary is highly exposed to global value chain price transmissions originating in Germany, Austria, and Russia; and in particular to changes in energy prices. The crude oil and natural gas price boom and the resulting energy crises caused a significant increase in consumer price levels in Hungary; however, this explains only a fraction of current inflation rates.

Open Access: Yes

DOI: 10.1556/204.2023.00015

Foreign trade relations of Hungary with China: A global value chain perspective

Magdolna Sass Krisztián Koppány Shulei Bi Gáspár Tamás

Publication Name: Society and Economy

Publication Date: 2023-09-15

Volume: 45

Issue: 3

Page Range: 229-249

Description:

Trade analysis for open economies is strategically important. Even though Hungarian trade relations are oriented towards the EU, the direct and indirect influence of Asia, mainly China, needs special attention. The paper focuses on direct bilateral relations between Hungary and China. The global value chain perspective enables the research to detect inter- and intra-industry dependencies and unfold and compare the industry focuses and dynamics of backward and forward linkages between 2000 and 2018. We used a mixed methodology, combining input-output analysis with company case studies based on a wide range of literature both from Chinese and East-Central European researchers. The findings support the significance of global value chain relations, highlight the restructuring of Hungarian trade relations with China over the past twenty years, and indicate the strong concentration of relations in terms of the number of companies.

Open Access: Yes

DOI: 10.1556/204.2023.00018

Changes in automotive value chain participation on the integrated periphery-The case of Czechia and Hungary

Magdolna Sass Jana Vlčková Krisztián Koppány Gáspár Tamás

Publication Name: Society and Economy

Publication Date: 2023-09-15

Volume: 45

Issue: 3

Page Range: 335-354

Description:

Central and Eastern European countries, including Czechia and Hungary, have become parts of the integrated periphery in the automotive industry. Through input-output analysis, company data and interviews, the article reveals the determining role of the industry in both economies and their deep integration in global value chains (GVCs). In addition to these similarities, the analysis reveals that domestic, simple and complex global value chain performances, ownership structures, the scale and types of upgrading tendencies as well as the consequences of the appearance of newcomers in the industry show different patterns of GVC structures over time. Due to these, the development paths of the two countries widely differ.

Open Access: Yes

DOI: 10.1556/204.2023.00003

Measuring the impacts of suburbanization with ecological footprint calculations

Kondor Attila Csaba Szabó Balázs Gabor Harangozo Szigeti Cecília Krisztián Koppány Kovács Zoltán

Publication Name: Cities

Publication Date: 2020-06-01

Volume: 101

Issue: Unknown

Page Range: Unknown

Description:

In this paper we present a complex Ecological Footprint (EF) analysis of one of the largest metropolitan regions in post-socialist East Central Europe, the Budapest Metropolitan Region. Our overall goal is to use both top-down and bottom-up approaches and measure the changes of footprint at a metropolitan scale between 2003 and 2013. Our specific objective is to explore how the spatial rearrangements of wealth, density and consumption influence the spatiotemporal changes of EF. The top-down (compound) calculations indicate growing footprint values both in Hungary and in the Budapest Metropolitan Region in the investigated period. However, household-level hybrid (component-based) calculations revealed decreasing footprint values for Hungary both in absolute and relative terms, and a growth for the metropolitan region. This finding suggests growing income disparities within the country. The indirect (consumption embedded) components of EF findings show that in the core city footprint values are higher due to higher disposable income. However, there is a gradual catching up in the suburban zone as younger and more affluent households arrive. On the other hand, direct per capita footprint values decreased in Budapest and grew in the suburbs between 2003 and 2013, mainly due to a higher heating footprint.

Open Access: Yes

DOI: 10.1016/j.cities.2020.102715

Measuring global value chains by input-output tables

Krisztián Koppány Gáspár Tamás

Publication Name: Statisztikai Szemle

Publication Date: 2020-01-01

Volume: 98

Issue: 9

Page Range: 1035-1065

Description:

No description provided

Open Access: Yes

DOI: 10.20311/stat2020.9.hu1035

Estimating growth contributions by structural decomposition of input-output tables

Krisztián Koppány

Publication Name: Acta Oeconomica

Publication Date: 2017-12-01

Volume: 67

Issue: 4

Page Range: 605-642

Description:

This paper presents a case-study to demonstrate the calculation methods of growth contributions using structural decompositions of input-output tables and their Hungarian applications. Although the required data are available with a considerable time-lag, results show that taking backward linkages through demand for inputs and value chain multipliers into account can significantly alter the picture on the growth effects of industries and final demand categories by the conventional approach based on quarterly GDP calculations. This can be instructive for analysts and policy-and decision-makers not only in Hungary, but also in other countries. The study was performed by using public macroeconomic and sectoral data obtained from the Hungarian Central Statistical Office.

Open Access: Yes

DOI: 10.1556/032.2017.67.4.6

Direct local economic impact of Budapest Liszt Ferenc International Airport

Tamás Dusek Lukovics Miklós Krisztián Koppány Bohl Patrick Poreisz Veronika

Publication Name: Teruleti Statisztika

Publication Date: 2017-01-01

Volume: 57

Issue: 1

Page Range: 76-93

Description:

Airports play a dominant role in today's longdistance transport and they also represent significant nodes of the modern globalised economy. By estimating direct and indirect impacts on employment and income, their importance can be characterized in quantifiable terms. This study aims to estimate the direct economic impacts of Budapest Liszt Ferenc Airport as a complex economic entity involving a number of companies that are legally separate but complementary to one another and operate in the Airport's area - after outlining the general issues related to the impact assessment of airports. The study addressed two years, 2009 and 2014, which made it possible to compare the circumstances before and after the termination of Malév.

Open Access: Yes

DOI: 10.15196/TS570104

The Measurement of Indirect Effects in Project Appraisal

Mattias Juhász Tünde Vörös Krisztián Koppány

Publication Name: Transportation Research Procedia

Publication Date: 2016-01-01

Volume: 13

Issue: Unknown

Page Range: 114-123

Description:

Imperative for growth is dominating the present economic conditions also influencing decision-making to a large extent. Therefore, the analysis of economic impacts plays a more and more significant role in the selection of transport projects. However, ex-ante project appraisal is facing an increasing problem concerning the measurement of indirect economic effects. This paper aims to investigate the accurate way of quantifying such benefits via the analysis of theoretical issues, the review of existing approaches and a case study.

Open Access: Yes

DOI: 10.1016/j.trpro.2016.05.012