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Inefficient use of public money is a policy issue of concern in Japan. Some contend that spending towards the formation of public capital does not promote economic growth, one reason being that such investment is concentrated in underdeveloped regions which have a low impact on the growth of economic activity. Investment in underdeveloped regions might be the result of political misallocation or simply the fact that public capital no longer contributes to private productivity. Our study addresses these two important issues: whether or not public infrastructure contributes to production in the private sector, and whether or not political factors really affect the allocation of public infrastructure investment. If the political factors indeed affect allocation, what kinds of political factors are the most deterministic? First, we survey studies on this topic published since the 1970s. For methodology, we plan to take a simultaneous approach to examine these issues. Second, because some data are not publicly available, we construct a data set of public infrastructure and related variables. Public capital in this study is limited to public infrastructure such as roads, ports, airports, banks and dams. Railroads and electric power plants are excluded because these were built by the private sector in Japan. In this study, we plan to use a panel data set covering 46 prefectures and 9 time periods for every 5 years from 1955 to 1995 in Japan. Therefore, the total sample size in this study is 414. Third, after constructing the data set, we overview the regional distribution of public infrastructure and the relationship between public infrastructure allocation and political factors. Last, we estimate simultaneous equations regarding regional production function, infrastructure investment function and grant allocation function. By using these estimated functions, we evaluate whether or not public capital contributes to production and what kind of political factors affect the allocation of public infrastructure investment.

Abstract.  We investigate the impact of international outsourcing on productivity using plant‐level data for Irish manufacturing. Specifically, we distinguish the effect of outsourcing of materials from services inputs. Moreover, we examine whether the impact on productivity is different for plants being more embedded in international markets through exporting or being part of a multinational. Our results show robust evidence for positive effects from outsourcing of services inputs for exporters, either domestic or foreign owned. By contrast, we find no statistically significant evidence of an impact of international outsourcing of services on productivity for firms not operating on the export market.

Denna avhandling undersöker hur investeringar i IT, och digitaliseringen av informationsflöden, har påverkat produktiviteten inom sjukvården. Genom empiriska undersökningar av avgränsade sjukvårdsprocesser – samt diskussioner baserade på idéer och teorier relaterade till ekonomi, "produktivitetsparadoxen", så kallade General Purpose Technologies (GPTs), och medicinsk informatik – detekteras och analyseras effekter av digitaliseringen. Produktivitetsparadoxen – vilken ställer frågan varför tidigare omfattande investeringar i IT till synes inte har genererat de förväntade produktivitetsökningarna – är en viktig utgångspunkt i föreliggande studie. Forskare har dryftat detta dilemma i många år men hittills har inga fullständigt tillfredsställande förklaringar lagts fram. Detta beror till stor del på att tidigare forskning huvudsakligen har inriktat sig på makroekonomisk statistik och aggregerade data, vilket har resulterat i otydliga eller ofullständiga slutsatser angående IT och ekonomisk tillväxt. För att verkligen beskriva effekterna av digitaliseringen är denna forskning istället baserad på undersökningar på mikronivå (organisations- eller avdelningsnivå) ur ett historiskt och kvalitativt perspektiv. En annan viktig tanke som genomsyrar denna avhandling är att för snäva definitioner av IT och produktivitet har bidragit till förbiseende av många nyttor till följd av digitalisering. Därför utvidgas termen IT här till att inkludera teknologi för att samla, lagra, bearbeta, återfå och kommunicera data, text, bilder och tal. Dessutom omfattar denna definition både administrativ och inbäddad IT. Vidare ifrågasätts de traditionella definitionerna av produktivitet, och begreppet ges en bredare betydelse för att fånga upp alla möjliga nyttor och/eller nackdelar som kan härledas till IT investeringar. Resultaten och analysen som presenteras i denna studie visar att produktiviteten inom sjukvården har ökat enormt tack vare IT-investeringar. Generellt sett så har sjukvårdsprocesserna snabbats upp avsevärt, sjukvårdskvaliteten har förbättrats, och kostnadseffektiviteten har ökat. Med andra ord, genom att introducera nya tankar gällande produktivitetsparadoxen, har fler effekter kunnat detekteras och analyseras. Det finns emellertid också många problem förknippade med implementering, användande och spridning av IT, vilka ges tillbörlig uppmärksamhet i denna undersökning. I förlängningen bidrar analysen av digitaliseringseffekterna till en ökad förståelse för hur IT-fieringen" av modern sjukvård påverkar dess produktivitet i form av exempelvis bättre (och även helt nya) behandlingsmetoder, förkortad konvalescens och snabbare patientflöden. Vidare ges förslag på hur implementeringsförfaranden kan skötas smidigare än tidigare, vilka problem relaterade till digitalisering som bör beaktas och lösas, samt vilka möjliga framtida nyttor som skulle kunna realiseras och hur. Detta torde vara av intresse för yrkesverksamma inom sjukvården, patienter, politiker som kall besluta om sjukvård, och även samhället i stort. Det övergripande målet med avhandlingen är således att underlätta utvecklingen mot en alltmer digitaliserad – och förhoppningsvis därav förbättrad – sjukvård genom att fördjupa förståelsen för relationen mellan IT och produktivitet. ; This thesis examines how investments in IT, and the digitization of information flows, have affected health care productivity. Through empirical investigations of health care processes – along with discussions based on notions derived from theories related to e.g. economics, the Productivity Paradox, General Purpose Technologies, and medical informatics – effects from digitization are detected and analyzed. An important point of departure is the so called Productivity Paradox, which raises the question why previous comprehensive investments in IT seemingly have not generated the anticipated productivity growth. Researchers have debated this dilemma for many years now but no sufficient explanations have been put forth. This is so due to a prior focus on snapshot descriptions, founded on macroeconomic statistics and aggregated data, which has resulted in ambiguous conclusions about IT and economic development. Thus, in order to really describe the effects from digitization, the process investigations mainly are carried out at the organization or department level, and from a qualitative and historical perspective. Furthermore, in the current research, it is believed that too narrow definitions of IT and productivity have contributed to the overlooking of benefits from digitization. Therefore the term IT is extended to include technology for collecting, storing, processing, retrieving, and communicating data, text, images and speech. Moreover, this definition includes both administrative and embedded IT. Also, the traditional definitions of productivity are questioned, and the concept is given a broader meaning in order to capture all possible benefits and/or disadvantages from IT investments. The results and analysis presented in this thesis show that productivity within health care has increased immensely thanks to investments in IT. In general, the treatment processes have been speeded up, health care quality has improved, and the cost effectiveness has been significantly enhanced. In other words, by introducing new thoughts regarding the Productivity Paradox, more effects from digitization are detected and analyzed. However, there are some problems connected to the implementation, adoption and diffusion of IT within health care, and they are also given proper attention throughout the current work. ; Report code: LIU-TEK-LIC-2007:37.

This paper assesses the productivity effects of infrastructure's operations and maintenance (O&M) spending by state and local governments in the 48 contiguous U.S. states over the period 1978-2000. We explicitly account for transboundary spillovers of capital and O&M spending and follow a semiparametric methodology that allows us to estimate state-specific output elasticities. We find strong evidence that in all 48 states the cross-state spillover effects of O&M outlays on productivity exceed their within-state impacts and are substantially higher than the spillover effects of capital expenditures.