Heterogeneity and Productivity

نویسندگان

  • Quamrul Ashraf
  • Oded Galor
  • Marc Klemp
چکیده

This research explores the e↵ects of within-group heterogeneity on group-level productivity within a novel geo-referenced dataset of observed genetic diversity across the globe. It establishes that observed genetic diversity of 230 worldwide ethnic groups, as well as predicted genetic diversity of 1,331 ethnic groups, has a hump-shaped e↵ect on economic prosperity, reflecting the trade-o↵ between the beneficial and the detrimental e↵ects of diversity on productivity. Moreover, the study demonstrates that variations in within-ethnic-group genetic diversity across ethnic groups contribute to ethnic and thus regional variation in economic development within a country.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ICT Impact on the Labor Productivity in the Iranian Manufacturing Industries; a Multilevel Analysis

It is now evident in the literature that the information and communication technology (ICT) has a positive and significant impact on the productivity and economic growth. Most studies in this area, however, are limited to the developed countries. Given different regulations and economic conditions, and also an increasing trend in allocating resources to ICT in developing countries, it is import...

متن کامل

Tariff Pass-through and Firm’s Productivity: A Case Study of Iran

T his paper investigates the heterogeneous reaction of Iranian exporters to the tariff rate changes, how export prices are influenced differently by the increase or decrease in foreign importers’ tariff rate. Using the Iranian transaction level export data and firm level data during the period 2002-2015, we find that tariff pass through for Iranian firms are incomplete and exporters ...

متن کامل

Single-phase Near-well Permeability Upscaling and Productivity Index Calculation Methods

Reservoir models with many grid blocks suffer from long run time; it is hence important to deliberate a method to remedy this drawback. Usual upscaling methods are proved to fail to reproduce fine grid model behaviors in coarse grid models in well proximity. This is attributed to rapid pressure changes in the near-well region. Standard permeability upscaling methods are limited to systems with ...

متن کامل

Effect of Productivity on Export: New Evidence from Iran’s Manufacturing Industries

 Based on the recent literature of heterogeneous firms, productive firms self select themselves into foreign markets. In this framework, there is a productivity rise prior to exporting. On the other words, different export performance across firms is linked to their heterogeneity.   The main purpose of the present paper is to examine the so-called hypothesis of heterogeneous firm in Iran. For ...

متن کامل

Group heterogeneity increases the risks of large group size: a longitudinal study of productivity in research groups.

Heterogeneous groups are valuable, but differences among members can weaken group identification. Weak group identification may be especially problematic in larger groups, which, in contrast with smaller groups, require more attention to motivating members and coordinating their tasks. We hypothesized that as groups increase in size, productivity would decrease with greater heterogeneity. We st...

متن کامل

Does Labour Productivity Flow Across Industries?: Estimation Robust to Panel Heterogeneity and Cross Sectional Correlation

We consider labour productivity convergence between the US and the UK and France, using industry level data. We find evidence of panel heterogeneity, cross sectional correlation and weak evidence of productivity convergence at the industry level.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2015