We investigate conditions sufficient for identification of average treatment effects using instrumental variables. First we show that the existence of valid instruments is not sufficient to identify any meaningful average treatment effect. We then establish that the combination of an instrument and a condition on the relation between the instrument and the participation status is sufficient for identification of a local average treatment effect for those who can be induced to change their participation status by changing the value of the instrument. Finally we derive the probability limit of the standard IV estimator under these conditions. It is seen to be a weighted average of local average treatment effects.

Evolution and Rationality Some Recent Game-Theoretic Results. Identification and Estimation of Local Average Treatment Effects

The four Visegrad states — Poland, the Czech Republic, Slovakia (until 1993 Czechoslovakia) and Hungary — form a compact area between Germany and Austria in the west and the states of the former USSR in the east. They are bounded by the Baltic in the north and the Danube river in the south. They are cut by the Sudeten and Carpathian mountain ranges, which divide Poland off from the other states. Poland is an extension of the North European plain and like the latter is drained by rivers that flow from south to north west — the Oder, the Vlatava and the Elbe, the Vistula and the Bug. The Danube is the great exception, flowing from its source eastward, turning through two 90-degree turns to end up in the Black Sea, forming the barrier and often the political frontier between central Europe and the Balkans. Hungary to the east of the Danube is also an open plain. The region is historically and culturally part of western Europe, but its eastern Marches now represents a vital strategic zone between Germany and the core of the European Union to the west and the Russian zone to the east.

Economy and Society

統計年鑑 = Statistical yearbook

หนงสอ Behavioral Game Theory: Experiments in Strategic Interaction เขยนโดย Colin F. Camerer มวตถประสงคเพอนำเสนอหลกฐานเชงประจกษจากผลการวจยจำนวนมากมายทยนยนอทธพลของปจจยทางจตวทยาทมผลตอการตดสนใจตามทฤษฎเกม หนงสอ เลมนไดนำเสนอแนวคดทฤษฎทเพมความสามารถในการอธบายพฤตกรรมการตดสนใจตามทฤษฎเกม (Game theory) ซง von Neumann; & Morgenstern ไดเสนอไวในป ค.ศ. 1944 โดยชใหเหนวา ปจจยทางจตวทยามอทธพลทำใหการตดสนใจทเกดขนจรงคลาดเคลอนจากการคาดการณของทฤษฎเกม

Behavioral Game Theory: Experiments in Strategic Interaction

VP-functions explain the support for the government at votes and polls by economic and political variables. Most studies analyze macro time series. We also cover studies of individual voters, socio-economic groups and regional cross-sections. The theory starts from the Responsibil- ity Hypothesis: voters hold the government responsible for economic conditions. It works in two party/block systems, but not else. Voters in most countries are found to be sociotropic. Egotropic voting also occurs. Voters' myopia is well established. Voting is retrospective as expectations are static. It costs the average government almost 2% of the vote to rule.

The VP-function: A survey of the literature on vote and popularity functions after 25 years*

http://directory.umm.ac.id/Data%20Elmu/jurnal/J-g/Journal%20of%20Health%20Economics/Vol20.Issue3.May2001/715.pdf

Type of contract and supplier-induced demand for primary physicians in Norway

Practice variation and physician-specific effects.

Corporate governance theory suggests that companies with dispersed and indirect ownership suffer from agency costs. A worst case is where several political authorities jointly own a company, which allows managers to operate with inferior efficiency. In political economy, the manager is not the major agency problem. Elected politicians may impair efficiency to improve their re-election prospects. Since politicians have less influence in jointly owned firms, such companies are expected to perform better than those owned by a single public authority.



Consistent with corporate governance – but not political economy – the empirical analysis suggests that dispersed municipal ownership impairs cost efficiency. In the Norwegian case of municipal refuse collection presented here, costs of dispersed ownership often outstrip gains from economies of scale. Use of jointly owned companies is not necessarily a proper response to efficiency problems inherent a fragmented local government structure.

Does dispersed public ownership impair efficiency? the case of refuse collection in norway

Local government in Norway comprises a large number of small municipalities. Cost efficiency can be improved by consolidating local authorities, and central government has designed a framework to stimulate voluntary mergers. Existing theories suggest that political transaction costs will impede consolidations. (1) Generous grants compensate diseconomies of scale. Central government has promised small municipalities that grant levels will be maintained, but policy promises may not be credible. (2) Property rights to local revenues are nullified when consolidations have been implemented. High-revenue municipalities will therefore go against merger with a poorer neighbor. (3) A consolidated local council may be composed of different political parties, and it may therefore pursue other policies than an existing council. Expected changes in party strength can lead municipalities to oppose a proposed consolidation. (4) Senior politicians are less likely to support mergers, particularly if they come from small polities.

/pdf/local-government-consolidations-the-impact-of-political-9v3qxeo545.pdf

Rune J. Sørensen

Papers

Type of contract and supplier-induced demand for primary physicians in Norway

Practice variation and physician-specific effects.

Does dispersed public ownership impair efficiency? the case of refuse collection in norway

Local government consolidations: The impact of political transaction costs

Service production and contract choice in primary physician services.